From dc816f8d925cac34922ea73abd94ae23a96cacac Mon Sep 17 00:00:00 2001 From: Mateusz Guzik Date: Wed, 1 Oct 2025 01:53:14 +0200 Subject: [PATCH 01/22] fs: assert ->i_lock held in __iget() Also remove the now redundant comment. Signed-off-by: Mateusz Guzik Reviewed-by: Jan Kara Signed-off-by: Christian Brauner --- include/linux/fs.h | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/include/linux/fs.h b/include/linux/fs.h index c895146c1444..ac62b9d10b00 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -3378,11 +3378,9 @@ static inline bool is_zero_ino(ino_t ino) return (u32)ino == 0; } -/* - * inode->i_lock must be held - */ static inline void __iget(struct inode *inode) { + lockdep_assert_held(&inode->i_lock); atomic_inc(&inode->i_count); } From be97a4b63ca8c3ed8f5c3f5606a15a8379c78afb Mon Sep 17 00:00:00 2001 From: Mateusz Guzik Date: Wed, 1 Oct 2025 03:00:10 +0200 Subject: [PATCH 02/22] fs: assert on ->i_count in iput_final() Notably make sure the count is 0 after the return from ->drop_inode(), provided we are going to drop. Inspired by suspicious games played by f2fs. Signed-off-by: Mateusz Guzik Signed-off-by: Christian Brauner --- fs/inode.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/fs/inode.c b/fs/inode.c index ec9339024ac3..fa82cb810af4 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -1879,6 +1879,7 @@ static void iput_final(struct inode *inode) int drop; WARN_ON(inode->i_state & I_NEW); + VFS_BUG_ON_INODE(atomic_read(&inode->i_count) != 0, inode); if (op->drop_inode) drop = op->drop_inode(inode); @@ -1893,6 +1894,12 @@ static void iput_final(struct inode *inode) return; } + /* + * Re-check ->i_count in case the ->drop_inode() hooks played games. + * Note we only execute this if the verdict was to drop the inode. + */ + VFS_BUG_ON_INODE(atomic_read(&inode->i_count) != 0, inode); + state = inode->i_state; if (!drop) { WRITE_ONCE(inode->i_state, state | I_WILL_FREE); From 0f607a89afe679265602c58097edf952b1e564ab Mon Sep 17 00:00:00 2001 From: Mateusz Guzik Date: Fri, 3 Oct 2025 04:36:52 +0200 Subject: [PATCH 03/22] ocfs2: retire ocfs2_drop_inode() and I_WILL_FREE usage This postpones the writeout to ocfs2_evict_inode(), which I'm told is fine (tm). The intent is to retire the I_WILL_FREE flag. Reviewed-by: Jan Kara Signed-off-by: Mateusz Guzik Reviewed-by: Joel Becker Reviewed-by: Mark Tinguely Signed-off-by: Christian Brauner --- fs/ocfs2/inode.c | 23 ++--------------------- fs/ocfs2/inode.h | 1 - fs/ocfs2/ocfs2_trace.h | 2 -- fs/ocfs2/super.c | 2 +- 4 files changed, 3 insertions(+), 25 deletions(-) diff --git a/fs/ocfs2/inode.c b/fs/ocfs2/inode.c index fcc89856ab95..84115bf8b464 100644 --- a/fs/ocfs2/inode.c +++ b/fs/ocfs2/inode.c @@ -1290,6 +1290,8 @@ static void ocfs2_clear_inode(struct inode *inode) void ocfs2_evict_inode(struct inode *inode) { + write_inode_now(inode, 1); + if (!inode->i_nlink || (OCFS2_I(inode)->ip_flags & OCFS2_INODE_MAYBE_ORPHANED)) { ocfs2_delete_inode(inode); @@ -1299,27 +1301,6 @@ void ocfs2_evict_inode(struct inode *inode) ocfs2_clear_inode(inode); } -/* Called under inode_lock, with no more references on the - * struct inode, so it's safe here to check the flags field - * and to manipulate i_nlink without any other locks. */ -int ocfs2_drop_inode(struct inode *inode) -{ - struct ocfs2_inode_info *oi = OCFS2_I(inode); - - trace_ocfs2_drop_inode((unsigned long long)oi->ip_blkno, - inode->i_nlink, oi->ip_flags); - - assert_spin_locked(&inode->i_lock); - inode->i_state |= I_WILL_FREE; - spin_unlock(&inode->i_lock); - write_inode_now(inode, 1); - spin_lock(&inode->i_lock); - WARN_ON(inode->i_state & I_NEW); - inode->i_state &= ~I_WILL_FREE; - - return 1; -} - /* * This is called from our getattr. */ diff --git a/fs/ocfs2/inode.h b/fs/ocfs2/inode.h index accf03d4765e..07bd838e7843 100644 --- a/fs/ocfs2/inode.h +++ b/fs/ocfs2/inode.h @@ -116,7 +116,6 @@ static inline struct ocfs2_caching_info *INODE_CACHE(struct inode *inode) } void ocfs2_evict_inode(struct inode *inode); -int ocfs2_drop_inode(struct inode *inode); /* Flags for ocfs2_iget() */ #define OCFS2_FI_FLAG_SYSFILE 0x1 diff --git a/fs/ocfs2/ocfs2_trace.h b/fs/ocfs2/ocfs2_trace.h index 54ed1495de9a..4b32fb5658ad 100644 --- a/fs/ocfs2/ocfs2_trace.h +++ b/fs/ocfs2/ocfs2_trace.h @@ -1569,8 +1569,6 @@ DEFINE_OCFS2_ULL_ULL_UINT_EVENT(ocfs2_delete_inode); DEFINE_OCFS2_ULL_UINT_EVENT(ocfs2_clear_inode); -DEFINE_OCFS2_ULL_UINT_UINT_EVENT(ocfs2_drop_inode); - TRACE_EVENT(ocfs2_inode_revalidate, TP_PROTO(void *inode, unsigned long long ino, unsigned int flags), diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c index 53daa4482406..2c7ba1480f7a 100644 --- a/fs/ocfs2/super.c +++ b/fs/ocfs2/super.c @@ -129,7 +129,7 @@ static const struct super_operations ocfs2_sops = { .statfs = ocfs2_statfs, .alloc_inode = ocfs2_alloc_inode, .free_inode = ocfs2_free_inode, - .drop_inode = ocfs2_drop_inode, + .drop_inode = inode_just_drop, .evict_inode = ocfs2_evict_inode, .sync_fs = ocfs2_sync_fs, .put_super = ocfs2_put_super, From 31e332b911fca54df467d264d7e2a2ef9317f3ca Mon Sep 17 00:00:00 2001 From: Mateusz Guzik Date: Mon, 6 Oct 2025 01:15:26 +0200 Subject: [PATCH 04/22] fs: add missing fences to I_NEW handling Suppose there are 2 CPUs racing inode hash lookup func (say ilookup5()) and unlock_new_inode(). In principle the latter can clear the I_NEW flag before prior stores into the inode were made visible. The former can in turn observe I_NEW is cleared and proceed to use the inode, while possibly reading from not-yet-published areas. Signed-off-by: Mateusz Guzik Signed-off-by: Christian Brauner --- fs/dcache.c | 4 ++++ fs/inode.c | 8 ++++++++ include/linux/writeback.h | 4 ++++ 3 files changed, 16 insertions(+) diff --git a/fs/dcache.c b/fs/dcache.c index a067fa0a965a..806d6a665124 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -1981,6 +1981,10 @@ void d_instantiate_new(struct dentry *entry, struct inode *inode) spin_lock(&inode->i_lock); __d_instantiate(entry, inode); WARN_ON(!(inode->i_state & I_NEW)); + /* + * Pairs with smp_rmb in wait_on_inode(). + */ + smp_wmb(); inode->i_state &= ~I_NEW & ~I_CREATING; /* * Pairs with the barrier in prepare_to_wait_event() to make sure diff --git a/fs/inode.c b/fs/inode.c index fa82cb810af4..37fc7a72aba5 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -1181,6 +1181,10 @@ void unlock_new_inode(struct inode *inode) lockdep_annotate_inode_mutex_key(inode); spin_lock(&inode->i_lock); WARN_ON(!(inode->i_state & I_NEW)); + /* + * Pairs with smp_rmb in wait_on_inode(). + */ + smp_wmb(); inode->i_state &= ~I_NEW & ~I_CREATING; /* * Pairs with the barrier in prepare_to_wait_event() to make sure @@ -1198,6 +1202,10 @@ void discard_new_inode(struct inode *inode) lockdep_annotate_inode_mutex_key(inode); spin_lock(&inode->i_lock); WARN_ON(!(inode->i_state & I_NEW)); + /* + * Pairs with smp_rmb in wait_on_inode(). + */ + smp_wmb(); inode->i_state &= ~I_NEW; /* * Pairs with the barrier in prepare_to_wait_event() to make sure diff --git a/include/linux/writeback.h b/include/linux/writeback.h index 22dd4adc5667..e1e1231a6830 100644 --- a/include/linux/writeback.h +++ b/include/linux/writeback.h @@ -194,6 +194,10 @@ static inline void wait_on_inode(struct inode *inode) { wait_var_event(inode_state_wait_address(inode, __I_NEW), !(READ_ONCE(inode->i_state) & I_NEW)); + /* + * Pairs with routines clearing I_NEW. + */ + smp_rmb(); } #ifdef CONFIG_CGROUP_WRITEBACK From af6023e2ce0a3d4d948885d464b0ddca4b8b1fdf Mon Sep 17 00:00:00 2001 From: Mateusz Guzik Date: Thu, 9 Oct 2025 09:59:15 +0200 Subject: [PATCH 05/22] fs: move wait_on_inode() from writeback.h to fs.h The only consumer outside of fs/inode.c is gfs2 and it already includes fs.h in the relevant file. Signed-off-by: Mateusz Guzik Signed-off-by: Christian Brauner --- include/linux/fs.h | 10 ++++++++++ include/linux/writeback.h | 11 ----------- 2 files changed, 10 insertions(+), 11 deletions(-) diff --git a/include/linux/fs.h b/include/linux/fs.h index ac62b9d10b00..b35014ba681b 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -949,6 +949,16 @@ static inline void inode_fake_hash(struct inode *inode) hlist_add_fake(&inode->i_hash); } +static inline void wait_on_inode(struct inode *inode) +{ + wait_var_event(inode_state_wait_address(inode, __I_NEW), + !(READ_ONCE(inode->i_state) & I_NEW)); + /* + * Pairs with routines clearing I_NEW. + */ + smp_rmb(); +} + /* * inode->i_rwsem nesting subclasses for the lock validator: * diff --git a/include/linux/writeback.h b/include/linux/writeback.h index e1e1231a6830..06195c2a535b 100644 --- a/include/linux/writeback.h +++ b/include/linux/writeback.h @@ -189,17 +189,6 @@ void wakeup_flusher_threads_bdi(struct backing_dev_info *bdi, void inode_wait_for_writeback(struct inode *inode); void inode_io_list_del(struct inode *inode); -/* writeback.h requires fs.h; it, too, is not included from here. */ -static inline void wait_on_inode(struct inode *inode) -{ - wait_var_event(inode_state_wait_address(inode, __I_NEW), - !(READ_ONCE(inode->i_state) & I_NEW)); - /* - * Pairs with routines clearing I_NEW. - */ - smp_rmb(); -} - #ifdef CONFIG_CGROUP_WRITEBACK #include From cb5db358ab5769cbd3e8e864f14af321126cccdb Mon Sep 17 00:00:00 2001 From: Mateusz Guzik Date: Thu, 9 Oct 2025 09:59:16 +0200 Subject: [PATCH 06/22] fs: spell out fenced ->i_state accesses with explicit smp_wmb/smp_rmb The incomming helpers don't ship with _release/_acquire variants, for the time being anyway. Signed-off-by: Mateusz Guzik Signed-off-by: Christian Brauner --- fs/fs-writeback.c | 5 +++-- include/linux/backing-dev.h | 5 +++-- 2 files changed, 6 insertions(+), 4 deletions(-) diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index 2b35e80037fe..9cda19a40ca2 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -476,10 +476,11 @@ static bool inode_do_switch_wbs(struct inode *inode, switched = true; skip_switch: /* - * Paired with load_acquire in unlocked_inode_to_wb_begin() and + * Paired with an acquire fence in unlocked_inode_to_wb_begin() and * ensures that the new wb is visible if they see !I_WB_SWITCH. */ - smp_store_release(&inode->i_state, inode->i_state & ~I_WB_SWITCH); + smp_wmb(); + inode->i_state &= ~I_WB_SWITCH; xa_unlock_irq(&mapping->i_pages); spin_unlock(&inode->i_lock); diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h index 3e64f14739dd..065cba5dc111 100644 --- a/include/linux/backing-dev.h +++ b/include/linux/backing-dev.h @@ -277,10 +277,11 @@ unlocked_inode_to_wb_begin(struct inode *inode, struct wb_lock_cookie *cookie) rcu_read_lock(); /* - * Paired with store_release in inode_switch_wbs_work_fn() and + * Paired with a release fence in inode_do_switch_wbs() and * ensures that we see the new wb if we see cleared I_WB_SWITCH. */ - cookie->locked = smp_load_acquire(&inode->i_state) & I_WB_SWITCH; + cookie->locked = inode->i_state & I_WB_SWITCH; + smp_rmb(); if (unlikely(cookie->locked)) xa_lock_irqsave(&inode->i_mapping->i_pages, cookie->flags); From d8753f788ab4916341d9fab81795be9f2f49c264 Mon Sep 17 00:00:00 2001 From: Mateusz Guzik Date: Thu, 9 Oct 2025 09:59:17 +0200 Subject: [PATCH 07/22] fs: provide accessors for ->i_state Open-coded accesses prevent asserting they are done correctly. One obvious aspect is locking, but significantly more can checked. For example it can be detected when the code is clearing flags which are already missing, or is setting flags when it is illegal (e.g., I_FREEING when ->i_count > 0). In order to keep things manageable this patchset merely gets the thing off the ground with only lockdep checks baked in. Current consumers can be trivially converted. Suppose flags I_A and I_B are to be handled. If ->i_lock is held, then: state = inode->i_state => state = inode_state_read(inode) inode->i_state |= (I_A | I_B) => inode_state_set(inode, I_A | I_B) inode->i_state &= ~(I_A | I_B) => inode_state_clear(inode, I_A | I_B) inode->i_state = I_A | I_B => inode_state_assign(inode, I_A | I_B) If ->i_lock is not held or only held conditionally: state = inode->i_state => state = inode_state_read_once(inode) inode->i_state |= (I_A | I_B) => inode_state_set_raw(inode, I_A | I_B) inode->i_state &= ~(I_A | I_B) => inode_state_clear_raw(inode, I_A | I_B) inode->i_state = I_A | I_B => inode_state_assign_raw(inode, I_A | I_B) The "_once" vs "_raw" discrepancy stems from the read variant differing by READ_ONCE as opposed to just lockdep checks. Finally, if you want to atomically clear flags and set new ones, the following: state = inode->i_state; state &= ~I_A; state |= I_B; inode->i_state = state; turns into: inode_state_replace(inode, I_A, I_B); Signed-off-by: Mateusz Guzik Signed-off-by: Christian Brauner --- include/linux/fs.h | 78 ++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 76 insertions(+), 2 deletions(-) diff --git a/include/linux/fs.h b/include/linux/fs.h index b35014ba681b..909eb1e68637 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -759,7 +759,7 @@ enum inode_state_bits { /* reserved wait address bit 3 */ }; -enum inode_state_flags_t { +enum inode_state_flags_enum { I_NEW = (1U << __I_NEW), I_SYNC = (1U << __I_SYNC), I_LRU_ISOLATING = (1U << __I_LRU_ISOLATING), @@ -843,7 +843,7 @@ struct inode { #endif /* Misc */ - enum inode_state_flags_t i_state; + enum inode_state_flags_enum i_state; /* 32-bit hole */ struct rw_semaphore i_rwsem; @@ -902,6 +902,80 @@ struct inode { void *i_private; /* fs or device private pointer */ } __randomize_layout; +/* + * i_state handling + * + * We hide all of it behind helpers so that we can validate consumers. + */ +static inline enum inode_state_flags_enum inode_state_read_once(struct inode *inode) +{ + return READ_ONCE(inode->i_state); +} + +static inline enum inode_state_flags_enum inode_state_read(struct inode *inode) +{ + lockdep_assert_held(&inode->i_lock); + return inode->i_state; +} + +static inline void inode_state_set_raw(struct inode *inode, + enum inode_state_flags_enum flags) +{ + WRITE_ONCE(inode->i_state, inode->i_state | flags); +} + +static inline void inode_state_set(struct inode *inode, + enum inode_state_flags_enum flags) +{ + lockdep_assert_held(&inode->i_lock); + inode_state_set_raw(inode, flags); +} + +static inline void inode_state_clear_raw(struct inode *inode, + enum inode_state_flags_enum flags) +{ + WRITE_ONCE(inode->i_state, inode->i_state & ~flags); +} + +static inline void inode_state_clear(struct inode *inode, + enum inode_state_flags_enum flags) +{ + lockdep_assert_held(&inode->i_lock); + inode_state_clear_raw(inode, flags); +} + +static inline void inode_state_assign_raw(struct inode *inode, + enum inode_state_flags_enum flags) +{ + WRITE_ONCE(inode->i_state, flags); +} + +static inline void inode_state_assign(struct inode *inode, + enum inode_state_flags_enum flags) +{ + lockdep_assert_held(&inode->i_lock); + inode_state_assign_raw(inode, flags); +} + +static inline void inode_state_replace_raw(struct inode *inode, + enum inode_state_flags_enum clearflags, + enum inode_state_flags_enum setflags) +{ + enum inode_state_flags_enum flags; + flags = inode->i_state; + flags &= ~clearflags; + flags |= setflags; + inode_state_assign_raw(inode, flags); +} + +static inline void inode_state_replace(struct inode *inode, + enum inode_state_flags_enum clearflags, + enum inode_state_flags_enum setflags) +{ + lockdep_assert_held(&inode->i_lock); + inode_state_replace_raw(inode, clearflags, setflags); +} + static inline void inode_set_cached_link(struct inode *inode, char *link, int linklen) { VFS_WARN_ON_INODE(strlen(link) != linklen, inode); From b4dbfd8653b34b0ab6c024ceda32af488c9b5602 Mon Sep 17 00:00:00 2001 From: Mateusz Guzik Date: Thu, 9 Oct 2025 09:59:18 +0200 Subject: [PATCH 08/22] Coccinelle-based conversion to use ->i_state accessors All places were patched by coccinelle with the default expecting that ->i_lock is held, afterwards entries got fixed up by hand to use unlocked variants as needed. The script: @@ expression inode, flags; @@ - inode->i_state & flags + inode_state_read(inode) & flags @@ expression inode, flags; @@ - inode->i_state &= ~flags + inode_state_clear(inode, flags) @@ expression inode, flag1, flag2; @@ - inode->i_state &= ~flag1 & ~flag2 + inode_state_clear(inode, flag1 | flag2) @@ expression inode, flags; @@ - inode->i_state |= flags + inode_state_set(inode, flags) @@ expression inode, flags; @@ - inode->i_state = flags + inode_state_assign(inode, flags) @@ expression inode, flags; @@ - flags = inode->i_state + flags = inode_state_read(inode) @@ expression inode, flags; @@ - READ_ONCE(inode->i_state) & flags + inode_state_read(inode) & flags Signed-off-by: Mateusz Guzik Signed-off-by: Christian Brauner --- block/bdev.c | 4 +- drivers/dax/super.c | 2 +- fs/9p/vfs_inode.c | 2 +- fs/9p/vfs_inode_dotl.c | 2 +- fs/affs/inode.c | 2 +- fs/afs/dynroot.c | 6 +- fs/afs/inode.c | 6 +- fs/befs/linuxvfs.c | 2 +- fs/bfs/inode.c | 2 +- fs/buffer.c | 4 +- fs/coda/cnode.c | 4 +- fs/cramfs/inode.c | 2 +- fs/crypto/keyring.c | 2 +- fs/crypto/keysetup.c | 2 +- fs/dcache.c | 8 +-- fs/drop_caches.c | 2 +- fs/ecryptfs/inode.c | 6 +- fs/efs/inode.c | 2 +- fs/erofs/inode.c | 2 +- fs/ext2/inode.c | 2 +- fs/freevxfs/vxfs_inode.c | 2 +- fs/fs-writeback.c | 120 +++++++++++++++++------------------ fs/fuse/inode.c | 4 +- fs/hfs/btree.c | 2 +- fs/hfs/inode.c | 2 +- fs/hfsplus/super.c | 2 +- fs/hostfs/hostfs_kern.c | 2 +- fs/hpfs/dir.c | 2 +- fs/hpfs/inode.c | 2 +- fs/inode.c | 92 +++++++++++++-------------- fs/isofs/inode.c | 2 +- fs/jffs2/fs.c | 4 +- fs/jfs/file.c | 4 +- fs/jfs/inode.c | 2 +- fs/jfs/jfs_txnmgr.c | 2 +- fs/kernfs/inode.c | 2 +- fs/libfs.c | 6 +- fs/minix/inode.c | 2 +- fs/namei.c | 8 +-- fs/netfs/misc.c | 8 +-- fs/netfs/read_single.c | 6 +- fs/nfs/inode.c | 2 +- fs/nfs/pnfs.c | 2 +- fs/nfsd/vfs.c | 2 +- fs/notify/fsnotify.c | 2 +- fs/ntfs3/inode.c | 2 +- fs/ocfs2/dlmglue.c | 2 +- fs/ocfs2/inode.c | 4 +- fs/omfs/inode.c | 2 +- fs/openpromfs/inode.c | 2 +- fs/orangefs/inode.c | 2 +- fs/orangefs/orangefs-utils.c | 6 +- fs/pipe.c | 2 +- fs/qnx4/inode.c | 2 +- fs/qnx6/inode.c | 2 +- fs/quota/dquot.c | 2 +- fs/romfs/super.c | 2 +- fs/squashfs/inode.c | 2 +- fs/sync.c | 2 +- fs/ubifs/file.c | 2 +- fs/ubifs/super.c | 2 +- fs/udf/inode.c | 2 +- fs/ufs/inode.c | 2 +- fs/zonefs/super.c | 4 +- mm/backing-dev.c | 2 +- security/landlock/fs.c | 2 +- 66 files changed, 199 insertions(+), 199 deletions(-) diff --git a/block/bdev.c b/block/bdev.c index 810707cca970..c33667e30eb7 100644 --- a/block/bdev.c +++ b/block/bdev.c @@ -67,7 +67,7 @@ static void bdev_write_inode(struct block_device *bdev) int ret; spin_lock(&inode->i_lock); - while (inode->i_state & I_DIRTY) { + while (inode_state_read(inode) & I_DIRTY) { spin_unlock(&inode->i_lock); ret = write_inode_now(inode, true); if (ret) @@ -1265,7 +1265,7 @@ void sync_bdevs(bool wait) struct block_device *bdev; spin_lock(&inode->i_lock); - if (inode->i_state & (I_FREEING|I_WILL_FREE|I_NEW) || + if (inode_state_read(inode) & (I_FREEING | I_WILL_FREE | I_NEW) || mapping->nrpages == 0) { spin_unlock(&inode->i_lock); continue; diff --git a/drivers/dax/super.c b/drivers/dax/super.c index d7714d8afb0f..c00b9dff4a06 100644 --- a/drivers/dax/super.c +++ b/drivers/dax/super.c @@ -433,7 +433,7 @@ static struct dax_device *dax_dev_get(dev_t devt) return NULL; dax_dev = to_dax_dev(inode); - if (inode->i_state & I_NEW) { + if (inode_state_read_once(inode) & I_NEW) { set_bit(DAXDEV_ALIVE, &dax_dev->flags); inode->i_cdev = &dax_dev->cdev; inode->i_mode = S_IFCHR; diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c index 69f378a83775..c3ed137cbf99 100644 --- a/fs/9p/vfs_inode.c +++ b/fs/9p/vfs_inode.c @@ -422,7 +422,7 @@ static struct inode *v9fs_qid_iget(struct super_block *sb, inode = iget5_locked(sb, QID2INO(qid), test, v9fs_set_inode, st); if (!inode) return ERR_PTR(-ENOMEM); - if (!(inode->i_state & I_NEW)) + if (!(inode_state_read_once(inode) & I_NEW)) return inode; /* * initialize the inode with the stat info diff --git a/fs/9p/vfs_inode_dotl.c b/fs/9p/vfs_inode_dotl.c index 0b404e8484d2..2247cef03c04 100644 --- a/fs/9p/vfs_inode_dotl.c +++ b/fs/9p/vfs_inode_dotl.c @@ -112,7 +112,7 @@ static struct inode *v9fs_qid_iget_dotl(struct super_block *sb, inode = iget5_locked(sb, QID2INO(qid), test, v9fs_set_inode_dotl, st); if (!inode) return ERR_PTR(-ENOMEM); - if (!(inode->i_state & I_NEW)) + if (!(inode_state_read_once(inode) & I_NEW)) return inode; /* * initialize the inode with the stat info diff --git a/fs/affs/inode.c b/fs/affs/inode.c index 0210df8d3500..0bfc7d151dcd 100644 --- a/fs/affs/inode.c +++ b/fs/affs/inode.c @@ -29,7 +29,7 @@ struct inode *affs_iget(struct super_block *sb, unsigned long ino) inode = iget_locked(sb, ino); if (!inode) return ERR_PTR(-ENOMEM); - if (!(inode->i_state & I_NEW)) + if (!(inode_state_read_once(inode) & I_NEW)) return inode; pr_debug("affs_iget(%lu)\n", inode->i_ino); diff --git a/fs/afs/dynroot.c b/fs/afs/dynroot.c index 8c6130789fde..475012555100 100644 --- a/fs/afs/dynroot.c +++ b/fs/afs/dynroot.c @@ -64,7 +64,7 @@ static struct inode *afs_iget_pseudo_dir(struct super_block *sb, ino_t ino) vnode = AFS_FS_I(inode); - if (inode->i_state & I_NEW) { + if (inode_state_read_once(inode) & I_NEW) { netfs_inode_init(&vnode->netfs, NULL, false); simple_inode_init_ts(inode); set_nlink(inode, 2); @@ -258,7 +258,7 @@ static struct dentry *afs_lookup_atcell(struct inode *dir, struct dentry *dentry vnode = AFS_FS_I(inode); - if (inode->i_state & I_NEW) { + if (inode_state_read_once(inode) & I_NEW) { netfs_inode_init(&vnode->netfs, NULL, false); simple_inode_init_ts(inode); set_nlink(inode, 1); @@ -383,7 +383,7 @@ struct inode *afs_dynroot_iget_root(struct super_block *sb) vnode = AFS_FS_I(inode); /* there shouldn't be an existing inode */ - if (inode->i_state & I_NEW) { + if (inode_state_read_once(inode) & I_NEW) { netfs_inode_init(&vnode->netfs, NULL, false); simple_inode_init_ts(inode); set_nlink(inode, 2); diff --git a/fs/afs/inode.c b/fs/afs/inode.c index e1cb17b85791..2fe2ccf59c7a 100644 --- a/fs/afs/inode.c +++ b/fs/afs/inode.c @@ -579,7 +579,7 @@ struct inode *afs_iget(struct afs_operation *op, struct afs_vnode_param *vp) inode, vnode->fid.vid, vnode->fid.vnode, vnode->fid.unique); /* deal with an existing inode */ - if (!(inode->i_state & I_NEW)) { + if (!(inode_state_read_once(inode) & I_NEW)) { _leave(" = %p", inode); return inode; } @@ -639,7 +639,7 @@ struct inode *afs_root_iget(struct super_block *sb, struct key *key) _debug("GOT ROOT INODE %p { vl=%llx }", inode, as->volume->vid); - BUG_ON(!(inode->i_state & I_NEW)); + BUG_ON(!(inode_state_read_once(inode) & I_NEW)); vnode = AFS_FS_I(inode); vnode->cb_v_check = atomic_read(&as->volume->cb_v_break); @@ -748,7 +748,7 @@ void afs_evict_inode(struct inode *inode) if ((S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode)) && - (inode->i_state & I_DIRTY) && + (inode_state_read_once(inode) & I_DIRTY) && !sbi->dyn_root) { struct writeback_control wbc = { .sync_mode = WB_SYNC_ALL, diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c index 8f430ff8e445..9fcfdd6b8189 100644 --- a/fs/befs/linuxvfs.c +++ b/fs/befs/linuxvfs.c @@ -307,7 +307,7 @@ static struct inode *befs_iget(struct super_block *sb, unsigned long ino) inode = iget_locked(sb, ino); if (!inode) return ERR_PTR(-ENOMEM); - if (!(inode->i_state & I_NEW)) + if (!(inode_state_read_once(inode) & I_NEW)) return inode; befs_ino = BEFS_I(inode); diff --git a/fs/bfs/inode.c b/fs/bfs/inode.c index 1d41ce477df5..cb406a6ee811 100644 --- a/fs/bfs/inode.c +++ b/fs/bfs/inode.c @@ -42,7 +42,7 @@ struct inode *bfs_iget(struct super_block *sb, unsigned long ino) inode = iget_locked(sb, ino); if (!inode) return ERR_PTR(-ENOMEM); - if (!(inode->i_state & I_NEW)) + if (!(inode_state_read_once(inode) & I_NEW)) return inode; if ((ino < BFS_ROOT_INO) || (ino > BFS_SB(inode->i_sb)->si_lasti)) { diff --git a/fs/buffer.c b/fs/buffer.c index 6a8752f7bbed..17b8ce567cc3 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -611,9 +611,9 @@ int generic_buffers_fsync_noflush(struct file *file, loff_t start, loff_t end, return err; ret = sync_mapping_buffers(inode->i_mapping); - if (!(inode->i_state & I_DIRTY_ALL)) + if (!(inode_state_read_once(inode) & I_DIRTY_ALL)) goto out; - if (datasync && !(inode->i_state & I_DIRTY_DATASYNC)) + if (datasync && !(inode_state_read_once(inode) & I_DIRTY_DATASYNC)) goto out; err = sync_inode_metadata(inode, 1); diff --git a/fs/coda/cnode.c b/fs/coda/cnode.c index 62a3d2565c26..70bb0579b40c 100644 --- a/fs/coda/cnode.c +++ b/fs/coda/cnode.c @@ -70,7 +70,7 @@ struct inode * coda_iget(struct super_block * sb, struct CodaFid * fid, if (!inode) return ERR_PTR(-ENOMEM); - if (inode->i_state & I_NEW) { + if (inode_state_read_once(inode) & I_NEW) { cii = ITOC(inode); /* we still need to set i_ino for things like stat(2) */ inode->i_ino = hash; @@ -148,7 +148,7 @@ struct inode *coda_fid_to_inode(struct CodaFid *fid, struct super_block *sb) /* we should never see newly created inodes because we intentionally * fail in the initialization callback */ - BUG_ON(inode->i_state & I_NEW); + BUG_ON(inode_state_read_once(inode) & I_NEW); return inode; } diff --git a/fs/cramfs/inode.c b/fs/cramfs/inode.c index ca54bf24b719..e54ebe402df7 100644 --- a/fs/cramfs/inode.c +++ b/fs/cramfs/inode.c @@ -95,7 +95,7 @@ static struct inode *get_cramfs_inode(struct super_block *sb, inode = iget_locked(sb, cramino(cramfs_inode, offset)); if (!inode) return ERR_PTR(-ENOMEM); - if (!(inode->i_state & I_NEW)) + if (!(inode_state_read_once(inode) & I_NEW)) return inode; switch (cramfs_inode->mode & S_IFMT) { diff --git a/fs/crypto/keyring.c b/fs/crypto/keyring.c index 3adbd7167055..5e939ea3ac28 100644 --- a/fs/crypto/keyring.c +++ b/fs/crypto/keyring.c @@ -945,7 +945,7 @@ static void evict_dentries_for_decrypted_inodes(struct fscrypt_master_key *mk) list_for_each_entry(ci, &mk->mk_decrypted_inodes, ci_master_key_link) { inode = ci->ci_inode; spin_lock(&inode->i_lock); - if (inode->i_state & (I_FREEING | I_WILL_FREE | I_NEW)) { + if (inode_state_read(inode) & (I_FREEING | I_WILL_FREE | I_NEW)) { spin_unlock(&inode->i_lock); continue; } diff --git a/fs/crypto/keysetup.c b/fs/crypto/keysetup.c index 4bd3918f50e3..40fa05688d3a 100644 --- a/fs/crypto/keysetup.c +++ b/fs/crypto/keysetup.c @@ -834,7 +834,7 @@ int fscrypt_drop_inode(struct inode *inode) * userspace is still using the files, inodes can be dirtied between * then and now. We mustn't lose any writes, so skip dirty inodes here. */ - if (inode->i_state & I_DIRTY_ALL) + if (inode_state_read(inode) & I_DIRTY_ALL) return 0; /* diff --git a/fs/dcache.c b/fs/dcache.c index 806d6a665124..78ffa7b7e824 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -794,7 +794,7 @@ void d_mark_dontcache(struct inode *inode) de->d_flags |= DCACHE_DONTCACHE; spin_unlock(&de->d_lock); } - inode->i_state |= I_DONTCACHE; + inode_state_set(inode, I_DONTCACHE); spin_unlock(&inode->i_lock); } EXPORT_SYMBOL(d_mark_dontcache); @@ -1073,7 +1073,7 @@ struct dentry *d_find_alias_rcu(struct inode *inode) spin_lock(&inode->i_lock); // ->i_dentry and ->i_rcu are colocated, but the latter won't be // used without having I_FREEING set, which means no aliases left - if (likely(!(inode->i_state & I_FREEING) && !hlist_empty(l))) { + if (likely(!(inode_state_read(inode) & I_FREEING) && !hlist_empty(l))) { if (S_ISDIR(inode->i_mode)) { de = hlist_entry(l->first, struct dentry, d_u.d_alias); } else { @@ -1980,12 +1980,12 @@ void d_instantiate_new(struct dentry *entry, struct inode *inode) security_d_instantiate(entry, inode); spin_lock(&inode->i_lock); __d_instantiate(entry, inode); - WARN_ON(!(inode->i_state & I_NEW)); + WARN_ON(!(inode_state_read(inode) & I_NEW)); /* * Pairs with smp_rmb in wait_on_inode(). */ smp_wmb(); - inode->i_state &= ~I_NEW & ~I_CREATING; + inode_state_clear(inode, I_NEW | I_CREATING); /* * Pairs with the barrier in prepare_to_wait_event() to make sure * ___wait_var_event() either sees the bit cleared or diff --git a/fs/drop_caches.c b/fs/drop_caches.c index 019a8b4eaaf9..49f56a598ecb 100644 --- a/fs/drop_caches.c +++ b/fs/drop_caches.c @@ -28,7 +28,7 @@ static void drop_pagecache_sb(struct super_block *sb, void *unused) * inodes without pages but we deliberately won't in case * we need to reschedule to avoid softlockups. */ - if ((inode->i_state & (I_FREEING|I_WILL_FREE|I_NEW)) || + if ((inode_state_read(inode) & (I_FREEING | I_WILL_FREE | I_NEW)) || (mapping_empty(inode->i_mapping) && !need_resched())) { spin_unlock(&inode->i_lock); continue; diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c index ed1394da8d6b..f3c68ef0271f 100644 --- a/fs/ecryptfs/inode.c +++ b/fs/ecryptfs/inode.c @@ -95,7 +95,7 @@ static struct inode *__ecryptfs_get_inode(struct inode *lower_inode, iput(lower_inode); return ERR_PTR(-EACCES); } - if (!(inode->i_state & I_NEW)) + if (!(inode_state_read_once(inode) & I_NEW)) iput(lower_inode); return inode; @@ -106,7 +106,7 @@ struct inode *ecryptfs_get_inode(struct inode *lower_inode, { struct inode *inode = __ecryptfs_get_inode(lower_inode, sb); - if (!IS_ERR(inode) && (inode->i_state & I_NEW)) + if (!IS_ERR(inode) && (inode_state_read_once(inode) & I_NEW)) unlock_new_inode(inode); return inode; @@ -364,7 +364,7 @@ static struct dentry *ecryptfs_lookup_interpose(struct dentry *dentry, } } - if (inode->i_state & I_NEW) + if (inode_state_read_once(inode) & I_NEW) unlock_new_inode(inode); return d_splice_alias(inode, dentry); } diff --git a/fs/efs/inode.c b/fs/efs/inode.c index 462619e59766..28407578f83a 100644 --- a/fs/efs/inode.c +++ b/fs/efs/inode.c @@ -62,7 +62,7 @@ struct inode *efs_iget(struct super_block *super, unsigned long ino) inode = iget_locked(super, ino); if (!inode) return ERR_PTR(-ENOMEM); - if (!(inode->i_state & I_NEW)) + if (!(inode_state_read_once(inode) & I_NEW)) return inode; in = INODE_INFO(inode); diff --git a/fs/erofs/inode.c b/fs/erofs/inode.c index cb780c095d28..bce98c845a18 100644 --- a/fs/erofs/inode.c +++ b/fs/erofs/inode.c @@ -295,7 +295,7 @@ struct inode *erofs_iget(struct super_block *sb, erofs_nid_t nid) if (!inode) return ERR_PTR(-ENOMEM); - if (inode->i_state & I_NEW) { + if (inode_state_read_once(inode) & I_NEW) { int err = erofs_fill_inode(inode); if (err) { diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c index e10c376843d7..dbfe9098a124 100644 --- a/fs/ext2/inode.c +++ b/fs/ext2/inode.c @@ -1398,7 +1398,7 @@ struct inode *ext2_iget (struct super_block *sb, unsigned long ino) inode = iget_locked(sb, ino); if (!inode) return ERR_PTR(-ENOMEM); - if (!(inode->i_state & I_NEW)) + if (!(inode_state_read_once(inode) & I_NEW)) return inode; ei = EXT2_I(inode); diff --git a/fs/freevxfs/vxfs_inode.c b/fs/freevxfs/vxfs_inode.c index 20600e9ea202..21fc94b98209 100644 --- a/fs/freevxfs/vxfs_inode.c +++ b/fs/freevxfs/vxfs_inode.c @@ -258,7 +258,7 @@ vxfs_iget(struct super_block *sbp, ino_t ino) ip = iget_locked(sbp, ino); if (!ip) return ERR_PTR(-ENOMEM); - if (!(ip->i_state & I_NEW)) + if (!(inode_state_read_once(ip) & I_NEW)) return ip; vip = VXFS_INO(ip); diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index 9cda19a40ca2..f784d8b09b04 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -121,7 +121,7 @@ static bool inode_io_list_move_locked(struct inode *inode, { assert_spin_locked(&wb->list_lock); assert_spin_locked(&inode->i_lock); - WARN_ON_ONCE(inode->i_state & I_FREEING); + WARN_ON_ONCE(inode_state_read(inode) & I_FREEING); list_move(&inode->i_io_list, head); @@ -304,9 +304,9 @@ static void inode_cgwb_move_to_attached(struct inode *inode, { assert_spin_locked(&wb->list_lock); assert_spin_locked(&inode->i_lock); - WARN_ON_ONCE(inode->i_state & I_FREEING); + WARN_ON_ONCE(inode_state_read(inode) & I_FREEING); - inode->i_state &= ~I_SYNC_QUEUED; + inode_state_clear(inode, I_SYNC_QUEUED); if (wb != &wb->bdi->wb) list_move(&inode->i_io_list, &wb->b_attached); else @@ -408,7 +408,7 @@ static bool inode_do_switch_wbs(struct inode *inode, * Once I_FREEING or I_WILL_FREE are visible under i_lock, the eviction * path owns the inode and we shouldn't modify ->i_io_list. */ - if (unlikely(inode->i_state & (I_FREEING | I_WILL_FREE))) + if (unlikely(inode_state_read(inode) & (I_FREEING | I_WILL_FREE))) goto skip_switch; trace_inode_switch_wbs(inode, old_wb, new_wb); @@ -451,7 +451,7 @@ static bool inode_do_switch_wbs(struct inode *inode, if (!list_empty(&inode->i_io_list)) { inode->i_wb = new_wb; - if (inode->i_state & I_DIRTY_ALL) { + if (inode_state_read(inode) & I_DIRTY_ALL) { /* * We need to keep b_dirty list sorted by * dirtied_time_when. However properly sorting the @@ -480,7 +480,7 @@ static bool inode_do_switch_wbs(struct inode *inode, * ensures that the new wb is visible if they see !I_WB_SWITCH. */ smp_wmb(); - inode->i_state &= ~I_WB_SWITCH; + inode_state_clear(inode, I_WB_SWITCH); xa_unlock_irq(&mapping->i_pages); spin_unlock(&inode->i_lock); @@ -601,12 +601,12 @@ static bool inode_prepare_wbs_switch(struct inode *inode, /* while holding I_WB_SWITCH, no one else can update the association */ spin_lock(&inode->i_lock); if (!(inode->i_sb->s_flags & SB_ACTIVE) || - inode->i_state & (I_WB_SWITCH | I_FREEING | I_WILL_FREE) || + inode_state_read(inode) & (I_WB_SWITCH | I_FREEING | I_WILL_FREE) || inode_to_wb(inode) == new_wb) { spin_unlock(&inode->i_lock); return false; } - inode->i_state |= I_WB_SWITCH; + inode_state_set(inode, I_WB_SWITCH); __iget(inode); spin_unlock(&inode->i_lock); @@ -636,7 +636,7 @@ static void inode_switch_wbs(struct inode *inode, int new_wb_id) struct bdi_writeback *new_wb = NULL; /* noop if seems to be already in progress */ - if (inode->i_state & I_WB_SWITCH) + if (inode_state_read_once(inode) & I_WB_SWITCH) return; /* avoid queueing a new switch if too many are already in flight */ @@ -1237,9 +1237,9 @@ static void inode_cgwb_move_to_attached(struct inode *inode, { assert_spin_locked(&wb->list_lock); assert_spin_locked(&inode->i_lock); - WARN_ON_ONCE(inode->i_state & I_FREEING); + WARN_ON_ONCE(inode_state_read(inode) & I_FREEING); - inode->i_state &= ~I_SYNC_QUEUED; + inode_state_clear(inode, I_SYNC_QUEUED); list_del_init(&inode->i_io_list); wb_io_lists_depopulated(wb); } @@ -1352,7 +1352,7 @@ void inode_io_list_del(struct inode *inode) wb = inode_to_wb_and_lock_list(inode); spin_lock(&inode->i_lock); - inode->i_state &= ~I_SYNC_QUEUED; + inode_state_clear(inode, I_SYNC_QUEUED); list_del_init(&inode->i_io_list); wb_io_lists_depopulated(wb); @@ -1410,13 +1410,13 @@ static void redirty_tail_locked(struct inode *inode, struct bdi_writeback *wb) { assert_spin_locked(&inode->i_lock); - inode->i_state &= ~I_SYNC_QUEUED; + inode_state_clear(inode, I_SYNC_QUEUED); /* * When the inode is being freed just don't bother with dirty list * tracking. Flush worker will ignore this inode anyway and it will * trigger assertions in inode_io_list_move_locked(). */ - if (inode->i_state & I_FREEING) { + if (inode_state_read(inode) & I_FREEING) { list_del_init(&inode->i_io_list); wb_io_lists_depopulated(wb); return; @@ -1450,7 +1450,7 @@ static void inode_sync_complete(struct inode *inode) { assert_spin_locked(&inode->i_lock); - inode->i_state &= ~I_SYNC; + inode_state_clear(inode, I_SYNC); /* If inode is clean an unused, put it into LRU now... */ inode_add_lru(inode); /* Called with inode->i_lock which ensures memory ordering. */ @@ -1494,7 +1494,7 @@ static int move_expired_inodes(struct list_head *delaying_queue, spin_lock(&inode->i_lock); list_move(&inode->i_io_list, &tmp); moved++; - inode->i_state |= I_SYNC_QUEUED; + inode_state_set(inode, I_SYNC_QUEUED); spin_unlock(&inode->i_lock); if (sb_is_blkdev_sb(inode->i_sb)) continue; @@ -1580,14 +1580,14 @@ void inode_wait_for_writeback(struct inode *inode) assert_spin_locked(&inode->i_lock); - if (!(inode->i_state & I_SYNC)) + if (!(inode_state_read(inode) & I_SYNC)) return; wq_head = inode_bit_waitqueue(&wqe, inode, __I_SYNC); for (;;) { prepare_to_wait_event(wq_head, &wqe.wq_entry, TASK_UNINTERRUPTIBLE); /* Checking I_SYNC with inode->i_lock guarantees memory ordering. */ - if (!(inode->i_state & I_SYNC)) + if (!(inode_state_read(inode) & I_SYNC)) break; spin_unlock(&inode->i_lock); schedule(); @@ -1613,7 +1613,7 @@ static void inode_sleep_on_writeback(struct inode *inode) wq_head = inode_bit_waitqueue(&wqe, inode, __I_SYNC); prepare_to_wait_event(wq_head, &wqe.wq_entry, TASK_UNINTERRUPTIBLE); /* Checking I_SYNC with inode->i_lock guarantees memory ordering. */ - sleep = !!(inode->i_state & I_SYNC); + sleep = !!(inode_state_read(inode) & I_SYNC); spin_unlock(&inode->i_lock); if (sleep) schedule(); @@ -1632,7 +1632,7 @@ static void requeue_inode(struct inode *inode, struct bdi_writeback *wb, struct writeback_control *wbc, unsigned long dirtied_before) { - if (inode->i_state & I_FREEING) + if (inode_state_read(inode) & I_FREEING) return; /* @@ -1640,7 +1640,7 @@ static void requeue_inode(struct inode *inode, struct bdi_writeback *wb, * shot. If still dirty, it will be redirty_tail()'ed below. Update * the dirty time to prevent enqueue and sync it again. */ - if ((inode->i_state & I_DIRTY) && + if ((inode_state_read(inode) & I_DIRTY) && (wbc->sync_mode == WB_SYNC_ALL || wbc->tagged_writepages)) inode->dirtied_when = jiffies; @@ -1651,7 +1651,7 @@ static void requeue_inode(struct inode *inode, struct bdi_writeback *wb, * is odd for clean inodes, it can happen for some * filesystems so handle that gracefully. */ - if (inode->i_state & I_DIRTY_ALL) + if (inode_state_read(inode) & I_DIRTY_ALL) redirty_tail_locked(inode, wb); else inode_cgwb_move_to_attached(inode, wb); @@ -1677,17 +1677,17 @@ static void requeue_inode(struct inode *inode, struct bdi_writeback *wb, */ redirty_tail_locked(inode, wb); } - } else if (inode->i_state & I_DIRTY) { + } else if (inode_state_read(inode) & I_DIRTY) { /* * Filesystems can dirty the inode during writeback operations, * such as delayed allocation during submission or metadata * updates after data IO completion. */ redirty_tail_locked(inode, wb); - } else if (inode->i_state & I_DIRTY_TIME) { + } else if (inode_state_read(inode) & I_DIRTY_TIME) { inode->dirtied_when = jiffies; inode_io_list_move_locked(inode, wb, &wb->b_dirty_time); - inode->i_state &= ~I_SYNC_QUEUED; + inode_state_clear(inode, I_SYNC_QUEUED); } else { /* The inode is clean. Remove from writeback lists. */ inode_cgwb_move_to_attached(inode, wb); @@ -1713,7 +1713,7 @@ __writeback_single_inode(struct inode *inode, struct writeback_control *wbc) unsigned dirty; int ret; - WARN_ON(!(inode->i_state & I_SYNC)); + WARN_ON(!(inode_state_read_once(inode) & I_SYNC)); trace_writeback_single_inode_start(inode, wbc, nr_to_write); @@ -1737,7 +1737,7 @@ __writeback_single_inode(struct inode *inode, struct writeback_control *wbc) * mark_inode_dirty_sync() to notify the filesystem about it and to * change I_DIRTY_TIME into I_DIRTY_SYNC. */ - if ((inode->i_state & I_DIRTY_TIME) && + if ((inode_state_read_once(inode) & I_DIRTY_TIME) && (wbc->sync_mode == WB_SYNC_ALL || time_after(jiffies, inode->dirtied_time_when + dirtytime_expire_interval * HZ))) { @@ -1752,8 +1752,8 @@ __writeback_single_inode(struct inode *inode, struct writeback_control *wbc) * after handling timestamp expiration, as that may dirty the inode too. */ spin_lock(&inode->i_lock); - dirty = inode->i_state & I_DIRTY; - inode->i_state &= ~dirty; + dirty = inode_state_read(inode) & I_DIRTY; + inode_state_clear(inode, dirty); /* * Paired with smp_mb() in __mark_inode_dirty(). This allows @@ -1769,10 +1769,10 @@ __writeback_single_inode(struct inode *inode, struct writeback_control *wbc) smp_mb(); if (mapping_tagged(mapping, PAGECACHE_TAG_DIRTY)) - inode->i_state |= I_DIRTY_PAGES; - else if (unlikely(inode->i_state & I_PINNING_NETFS_WB)) { - if (!(inode->i_state & I_DIRTY_PAGES)) { - inode->i_state &= ~I_PINNING_NETFS_WB; + inode_state_set(inode, I_DIRTY_PAGES); + else if (unlikely(inode_state_read(inode) & I_PINNING_NETFS_WB)) { + if (!(inode_state_read(inode) & I_DIRTY_PAGES)) { + inode_state_clear(inode, I_PINNING_NETFS_WB); wbc->unpinned_netfs_wb = true; dirty |= I_PINNING_NETFS_WB; /* Cause write_inode */ } @@ -1808,11 +1808,11 @@ static int writeback_single_inode(struct inode *inode, spin_lock(&inode->i_lock); if (!icount_read(inode)) - WARN_ON(!(inode->i_state & (I_WILL_FREE|I_FREEING))); + WARN_ON(!(inode_state_read(inode) & (I_WILL_FREE | I_FREEING))); else - WARN_ON(inode->i_state & I_WILL_FREE); + WARN_ON(inode_state_read(inode) & I_WILL_FREE); - if (inode->i_state & I_SYNC) { + if (inode_state_read(inode) & I_SYNC) { /* * Writeback is already running on the inode. For WB_SYNC_NONE, * that's enough and we can just return. For WB_SYNC_ALL, we @@ -1823,7 +1823,7 @@ static int writeback_single_inode(struct inode *inode, goto out; inode_wait_for_writeback(inode); } - WARN_ON(inode->i_state & I_SYNC); + WARN_ON(inode_state_read(inode) & I_SYNC); /* * If the inode is already fully clean, then there's nothing to do. * @@ -1831,11 +1831,11 @@ static int writeback_single_inode(struct inode *inode, * still under writeback, e.g. due to prior WB_SYNC_NONE writeback. If * there are any such pages, we'll need to wait for them. */ - if (!(inode->i_state & I_DIRTY_ALL) && + if (!(inode_state_read(inode) & I_DIRTY_ALL) && (wbc->sync_mode != WB_SYNC_ALL || !mapping_tagged(inode->i_mapping, PAGECACHE_TAG_WRITEBACK))) goto out; - inode->i_state |= I_SYNC; + inode_state_set(inode, I_SYNC); wbc_attach_and_unlock_inode(wbc, inode); ret = __writeback_single_inode(inode, wbc); @@ -1848,18 +1848,18 @@ static int writeback_single_inode(struct inode *inode, * If the inode is freeing, its i_io_list shoudn't be updated * as it can be finally deleted at this moment. */ - if (!(inode->i_state & I_FREEING)) { + if (!(inode_state_read(inode) & I_FREEING)) { /* * If the inode is now fully clean, then it can be safely * removed from its writeback list (if any). Otherwise the * flusher threads are responsible for the writeback lists. */ - if (!(inode->i_state & I_DIRTY_ALL)) + if (!(inode_state_read(inode) & I_DIRTY_ALL)) inode_cgwb_move_to_attached(inode, wb); - else if (!(inode->i_state & I_SYNC_QUEUED)) { - if ((inode->i_state & I_DIRTY)) + else if (!(inode_state_read(inode) & I_SYNC_QUEUED)) { + if ((inode_state_read(inode) & I_DIRTY)) redirty_tail_locked(inode, wb); - else if (inode->i_state & I_DIRTY_TIME) { + else if (inode_state_read(inode) & I_DIRTY_TIME) { inode->dirtied_when = jiffies; inode_io_list_move_locked(inode, wb, @@ -1968,12 +1968,12 @@ static long writeback_sb_inodes(struct super_block *sb, * kind writeout is handled by the freer. */ spin_lock(&inode->i_lock); - if (inode->i_state & (I_NEW | I_FREEING | I_WILL_FREE)) { + if (inode_state_read(inode) & (I_NEW | I_FREEING | I_WILL_FREE)) { redirty_tail_locked(inode, wb); spin_unlock(&inode->i_lock); continue; } - if ((inode->i_state & I_SYNC) && wbc.sync_mode != WB_SYNC_ALL) { + if ((inode_state_read(inode) & I_SYNC) && wbc.sync_mode != WB_SYNC_ALL) { /* * If this inode is locked for writeback and we are not * doing writeback-for-data-integrity, move it to @@ -1995,14 +1995,14 @@ static long writeback_sb_inodes(struct super_block *sb, * are doing WB_SYNC_NONE writeback. So this catches only the * WB_SYNC_ALL case. */ - if (inode->i_state & I_SYNC) { + if (inode_state_read(inode) & I_SYNC) { /* Wait for I_SYNC. This function drops i_lock... */ inode_sleep_on_writeback(inode); /* Inode may be gone, start again */ spin_lock(&wb->list_lock); continue; } - inode->i_state |= I_SYNC; + inode_state_set(inode, I_SYNC); wbc_attach_and_unlock_inode(&wbc, inode); write_chunk = writeback_chunk_size(wb, work); @@ -2040,7 +2040,7 @@ static long writeback_sb_inodes(struct super_block *sb, */ tmp_wb = inode_to_wb_and_lock_list(inode); spin_lock(&inode->i_lock); - if (!(inode->i_state & I_DIRTY_ALL)) + if (!(inode_state_read(inode) & I_DIRTY_ALL)) total_wrote++; requeue_inode(inode, tmp_wb, &wbc, dirtied_before); inode_sync_complete(inode); @@ -2546,10 +2546,10 @@ void __mark_inode_dirty(struct inode *inode, int flags) * We tell ->dirty_inode callback that timestamps need to * be updated by setting I_DIRTY_TIME in flags. */ - if (inode->i_state & I_DIRTY_TIME) { + if (inode_state_read_once(inode) & I_DIRTY_TIME) { spin_lock(&inode->i_lock); - if (inode->i_state & I_DIRTY_TIME) { - inode->i_state &= ~I_DIRTY_TIME; + if (inode_state_read(inode) & I_DIRTY_TIME) { + inode_state_clear(inode, I_DIRTY_TIME); flags |= I_DIRTY_TIME; } spin_unlock(&inode->i_lock); @@ -2586,16 +2586,16 @@ void __mark_inode_dirty(struct inode *inode, int flags) */ smp_mb(); - if ((inode->i_state & flags) == flags) + if ((inode_state_read_once(inode) & flags) == flags) return; spin_lock(&inode->i_lock); - if ((inode->i_state & flags) != flags) { - const int was_dirty = inode->i_state & I_DIRTY; + if ((inode_state_read(inode) & flags) != flags) { + const int was_dirty = inode_state_read(inode) & I_DIRTY; inode_attach_wb(inode, NULL); - inode->i_state |= flags; + inode_state_set(inode, flags); /* * Grab inode's wb early because it requires dropping i_lock and we @@ -2614,7 +2614,7 @@ void __mark_inode_dirty(struct inode *inode, int flags) * the inode it will place it on the appropriate superblock * list, based upon its state. */ - if (inode->i_state & I_SYNC_QUEUED) + if (inode_state_read(inode) & I_SYNC_QUEUED) goto out_unlock; /* @@ -2625,7 +2625,7 @@ void __mark_inode_dirty(struct inode *inode, int flags) if (inode_unhashed(inode)) goto out_unlock; } - if (inode->i_state & I_FREEING) + if (inode_state_read(inode) & I_FREEING) goto out_unlock; /* @@ -2640,7 +2640,7 @@ void __mark_inode_dirty(struct inode *inode, int flags) if (dirtytime) inode->dirtied_time_when = jiffies; - if (inode->i_state & I_DIRTY) + if (inode_state_read(inode) & I_DIRTY) dirty_list = &wb->b_dirty; else dirty_list = &wb->b_dirty_time; @@ -2737,7 +2737,7 @@ static void wait_sb_inodes(struct super_block *sb) spin_unlock_irq(&sb->s_inode_wblist_lock); spin_lock(&inode->i_lock); - if (inode->i_state & (I_FREEING|I_WILL_FREE|I_NEW)) { + if (inode_state_read(inode) & (I_FREEING | I_WILL_FREE | I_NEW)) { spin_unlock(&inode->i_lock); spin_lock_irq(&sb->s_inode_wblist_lock); diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c index d1babf56f254..bbecd0e5855d 100644 --- a/fs/fuse/inode.c +++ b/fs/fuse/inode.c @@ -160,7 +160,7 @@ static void fuse_evict_inode(struct inode *inode) struct fuse_inode *fi = get_fuse_inode(inode); /* Will write inode on close/munmap and in all other dirtiers */ - WARN_ON(inode->i_state & I_DIRTY_INODE); + WARN_ON(inode_state_read_once(inode) & I_DIRTY_INODE); if (FUSE_IS_DAX(inode)) dax_break_layout_final(inode); @@ -505,7 +505,7 @@ struct inode *fuse_iget(struct super_block *sb, u64 nodeid, if (!inode) return NULL; - if ((inode->i_state & I_NEW)) { + if ((inode_state_read_once(inode) & I_NEW)) { inode->i_flags |= S_NOATIME; if (!fc->writeback_cache || !S_ISREG(attr->mode)) inode->i_flags |= S_NOCMTIME; diff --git a/fs/hfs/btree.c b/fs/hfs/btree.c index 22e62fe7448b..54c20d01c342 100644 --- a/fs/hfs/btree.c +++ b/fs/hfs/btree.c @@ -42,7 +42,7 @@ struct hfs_btree *hfs_btree_open(struct super_block *sb, u32 id, btree_keycmp ke tree->inode = iget_locked(sb, id); if (!tree->inode) goto free_tree; - BUG_ON(!(tree->inode->i_state & I_NEW)); + BUG_ON(!(inode_state_read_once(tree->inode) & I_NEW)); { struct hfs_mdb *mdb = HFS_SB(sb)->mdb; HFS_I(tree->inode)->flags = 0; diff --git a/fs/hfs/inode.c b/fs/hfs/inode.c index 9cd449913dc8..81ad93e6312f 100644 --- a/fs/hfs/inode.c +++ b/fs/hfs/inode.c @@ -412,7 +412,7 @@ struct inode *hfs_iget(struct super_block *sb, struct hfs_cat_key *key, hfs_cat_ return NULL; } inode = iget5_locked(sb, cnid, hfs_test_inode, hfs_read_inode, &data); - if (inode && (inode->i_state & I_NEW)) + if (inode && (inode_state_read_once(inode) & I_NEW)) unlock_new_inode(inode); return inode; } diff --git a/fs/hfsplus/super.c b/fs/hfsplus/super.c index 16bc4abc67e0..54e85e25a259 100644 --- a/fs/hfsplus/super.c +++ b/fs/hfsplus/super.c @@ -65,7 +65,7 @@ struct inode *hfsplus_iget(struct super_block *sb, unsigned long ino) inode = iget_locked(sb, ino); if (!inode) return ERR_PTR(-ENOMEM); - if (!(inode->i_state & I_NEW)) + if (!(inode_state_read_once(inode) & I_NEW)) return inode; atomic_set(&HFSPLUS_I(inode)->opencnt, 0); diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c index 1e1acf5775ab..76b643f7d05c 100644 --- a/fs/hostfs/hostfs_kern.c +++ b/fs/hostfs/hostfs_kern.c @@ -581,7 +581,7 @@ static struct inode *hostfs_iget(struct super_block *sb, char *name) if (!inode) return ERR_PTR(-ENOMEM); - if (inode->i_state & I_NEW) { + if (inode_state_read_once(inode) & I_NEW) { unlock_new_inode(inode); } else { spin_lock(&inode->i_lock); diff --git a/fs/hpfs/dir.c b/fs/hpfs/dir.c index 49dd585c2b17..ceb50b2dc91a 100644 --- a/fs/hpfs/dir.c +++ b/fs/hpfs/dir.c @@ -247,7 +247,7 @@ struct dentry *hpfs_lookup(struct inode *dir, struct dentry *dentry, unsigned in result = ERR_PTR(-ENOMEM); goto bail1; } - if (result->i_state & I_NEW) { + if (inode_state_read_once(result) & I_NEW) { hpfs_init_inode(result); if (de->directory) hpfs_read_inode(result); diff --git a/fs/hpfs/inode.c b/fs/hpfs/inode.c index 34008442ee26..93d528f4f4f2 100644 --- a/fs/hpfs/inode.c +++ b/fs/hpfs/inode.c @@ -196,7 +196,7 @@ void hpfs_write_inode(struct inode *i) parent = iget_locked(i->i_sb, hpfs_inode->i_parent_dir); if (parent) { hpfs_inode->i_dirty = 0; - if (parent->i_state & I_NEW) { + if (inode_state_read_once(parent) & I_NEW) { hpfs_init_inode(parent); hpfs_read_inode(parent); unlock_new_inode(parent); diff --git a/fs/inode.c b/fs/inode.c index 37fc7a72aba5..f094ed3e6f30 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -233,7 +233,7 @@ int inode_init_always_gfp(struct super_block *sb, struct inode *inode, gfp_t gfp inode->i_sb = sb; inode->i_blkbits = sb->s_blocksize_bits; inode->i_flags = 0; - inode->i_state = 0; + inode_state_assign_raw(inode, 0); atomic64_set(&inode->i_sequence, 0); atomic_set(&inode->i_count, 1); inode->i_op = &empty_iops; @@ -471,7 +471,7 @@ EXPORT_SYMBOL(set_nlink); void inc_nlink(struct inode *inode) { if (unlikely(inode->i_nlink == 0)) { - WARN_ON(!(inode->i_state & I_LINKABLE)); + WARN_ON(!(inode_state_read_once(inode) & I_LINKABLE)); atomic_long_dec(&inode->i_sb->s_remove_count); } @@ -532,7 +532,7 @@ EXPORT_SYMBOL(ihold); static void __inode_add_lru(struct inode *inode, bool rotate) { - if (inode->i_state & (I_DIRTY_ALL | I_SYNC | I_FREEING | I_WILL_FREE)) + if (inode_state_read(inode) & (I_DIRTY_ALL | I_SYNC | I_FREEING | I_WILL_FREE)) return; if (icount_read(inode)) return; @@ -544,7 +544,7 @@ static void __inode_add_lru(struct inode *inode, bool rotate) if (list_lru_add_obj(&inode->i_sb->s_inode_lru, &inode->i_lru)) this_cpu_inc(nr_unused); else if (rotate) - inode->i_state |= I_REFERENCED; + inode_state_set(inode, I_REFERENCED); } struct wait_queue_head *inode_bit_waitqueue(struct wait_bit_queue_entry *wqe, @@ -577,15 +577,15 @@ static void inode_lru_list_del(struct inode *inode) static void inode_pin_lru_isolating(struct inode *inode) { lockdep_assert_held(&inode->i_lock); - WARN_ON(inode->i_state & (I_LRU_ISOLATING | I_FREEING | I_WILL_FREE)); - inode->i_state |= I_LRU_ISOLATING; + WARN_ON(inode_state_read(inode) & (I_LRU_ISOLATING | I_FREEING | I_WILL_FREE)); + inode_state_set(inode, I_LRU_ISOLATING); } static void inode_unpin_lru_isolating(struct inode *inode) { spin_lock(&inode->i_lock); - WARN_ON(!(inode->i_state & I_LRU_ISOLATING)); - inode->i_state &= ~I_LRU_ISOLATING; + WARN_ON(!(inode_state_read(inode) & I_LRU_ISOLATING)); + inode_state_clear(inode, I_LRU_ISOLATING); /* Called with inode->i_lock which ensures memory ordering. */ inode_wake_up_bit(inode, __I_LRU_ISOLATING); spin_unlock(&inode->i_lock); @@ -597,7 +597,7 @@ static void inode_wait_for_lru_isolating(struct inode *inode) struct wait_queue_head *wq_head; lockdep_assert_held(&inode->i_lock); - if (!(inode->i_state & I_LRU_ISOLATING)) + if (!(inode_state_read(inode) & I_LRU_ISOLATING)) return; wq_head = inode_bit_waitqueue(&wqe, inode, __I_LRU_ISOLATING); @@ -607,14 +607,14 @@ static void inode_wait_for_lru_isolating(struct inode *inode) * Checking I_LRU_ISOLATING with inode->i_lock guarantees * memory ordering. */ - if (!(inode->i_state & I_LRU_ISOLATING)) + if (!(inode_state_read(inode) & I_LRU_ISOLATING)) break; spin_unlock(&inode->i_lock); schedule(); spin_lock(&inode->i_lock); } finish_wait(wq_head, &wqe.wq_entry); - WARN_ON(inode->i_state & I_LRU_ISOLATING); + WARN_ON(inode_state_read(inode) & I_LRU_ISOLATING); } /** @@ -761,11 +761,11 @@ void clear_inode(struct inode *inode) */ xa_unlock_irq(&inode->i_data.i_pages); BUG_ON(!list_empty(&inode->i_data.i_private_list)); - BUG_ON(!(inode->i_state & I_FREEING)); - BUG_ON(inode->i_state & I_CLEAR); + BUG_ON(!(inode_state_read_once(inode) & I_FREEING)); + BUG_ON(inode_state_read_once(inode) & I_CLEAR); BUG_ON(!list_empty(&inode->i_wb_list)); /* don't need i_lock here, no concurrent mods to i_state */ - inode->i_state = I_FREEING | I_CLEAR; + inode_state_assign_raw(inode, I_FREEING | I_CLEAR); } EXPORT_SYMBOL(clear_inode); @@ -786,7 +786,7 @@ static void evict(struct inode *inode) { const struct super_operations *op = inode->i_sb->s_op; - BUG_ON(!(inode->i_state & I_FREEING)); + BUG_ON(!(inode_state_read_once(inode) & I_FREEING)); BUG_ON(!list_empty(&inode->i_lru)); if (!list_empty(&inode->i_io_list)) @@ -879,12 +879,12 @@ void evict_inodes(struct super_block *sb) spin_unlock(&inode->i_lock); continue; } - if (inode->i_state & (I_NEW | I_FREEING | I_WILL_FREE)) { + if (inode_state_read(inode) & (I_NEW | I_FREEING | I_WILL_FREE)) { spin_unlock(&inode->i_lock); continue; } - inode->i_state |= I_FREEING; + inode_state_set(inode, I_FREEING); inode_lru_list_del(inode); spin_unlock(&inode->i_lock); list_add(&inode->i_lru, &dispose); @@ -938,7 +938,7 @@ static enum lru_status inode_lru_isolate(struct list_head *item, * sync, or the last page cache deletion will requeue them. */ if (icount_read(inode) || - (inode->i_state & ~I_REFERENCED) || + (inode_state_read(inode) & ~I_REFERENCED) || !mapping_shrinkable(&inode->i_data)) { list_lru_isolate(lru, &inode->i_lru); spin_unlock(&inode->i_lock); @@ -947,8 +947,8 @@ static enum lru_status inode_lru_isolate(struct list_head *item, } /* Recently referenced inodes get one more pass */ - if (inode->i_state & I_REFERENCED) { - inode->i_state &= ~I_REFERENCED; + if (inode_state_read(inode) & I_REFERENCED) { + inode_state_clear(inode, I_REFERENCED); spin_unlock(&inode->i_lock); return LRU_ROTATE; } @@ -975,8 +975,8 @@ static enum lru_status inode_lru_isolate(struct list_head *item, return LRU_RETRY; } - WARN_ON(inode->i_state & I_NEW); - inode->i_state |= I_FREEING; + WARN_ON(inode_state_read(inode) & I_NEW); + inode_state_set(inode, I_FREEING); list_lru_isolate_move(lru, &inode->i_lru, freeable); spin_unlock(&inode->i_lock); @@ -1025,11 +1025,11 @@ static struct inode *find_inode(struct super_block *sb, if (!test(inode, data)) continue; spin_lock(&inode->i_lock); - if (inode->i_state & (I_FREEING|I_WILL_FREE)) { + if (inode_state_read(inode) & (I_FREEING | I_WILL_FREE)) { __wait_on_freeing_inode(inode, is_inode_hash_locked); goto repeat; } - if (unlikely(inode->i_state & I_CREATING)) { + if (unlikely(inode_state_read(inode) & I_CREATING)) { spin_unlock(&inode->i_lock); rcu_read_unlock(); return ERR_PTR(-ESTALE); @@ -1066,11 +1066,11 @@ static struct inode *find_inode_fast(struct super_block *sb, if (inode->i_sb != sb) continue; spin_lock(&inode->i_lock); - if (inode->i_state & (I_FREEING|I_WILL_FREE)) { + if (inode_state_read(inode) & (I_FREEING | I_WILL_FREE)) { __wait_on_freeing_inode(inode, is_inode_hash_locked); goto repeat; } - if (unlikely(inode->i_state & I_CREATING)) { + if (unlikely(inode_state_read(inode) & I_CREATING)) { spin_unlock(&inode->i_lock); rcu_read_unlock(); return ERR_PTR(-ESTALE); @@ -1180,12 +1180,12 @@ void unlock_new_inode(struct inode *inode) { lockdep_annotate_inode_mutex_key(inode); spin_lock(&inode->i_lock); - WARN_ON(!(inode->i_state & I_NEW)); + WARN_ON(!(inode_state_read(inode) & I_NEW)); /* * Pairs with smp_rmb in wait_on_inode(). */ smp_wmb(); - inode->i_state &= ~I_NEW & ~I_CREATING; + inode_state_clear(inode, I_NEW | I_CREATING); /* * Pairs with the barrier in prepare_to_wait_event() to make sure * ___wait_var_event() either sees the bit cleared or @@ -1201,12 +1201,12 @@ void discard_new_inode(struct inode *inode) { lockdep_annotate_inode_mutex_key(inode); spin_lock(&inode->i_lock); - WARN_ON(!(inode->i_state & I_NEW)); + WARN_ON(!(inode_state_read(inode) & I_NEW)); /* * Pairs with smp_rmb in wait_on_inode(). */ smp_wmb(); - inode->i_state &= ~I_NEW; + inode_state_clear(inode, I_NEW); /* * Pairs with the barrier in prepare_to_wait_event() to make sure * ___wait_var_event() either sees the bit cleared or @@ -1318,7 +1318,7 @@ struct inode *inode_insert5(struct inode *inode, unsigned long hashval, * caller is responsible for filling in the contents */ spin_lock(&inode->i_lock); - inode->i_state |= I_NEW; + inode_state_set(inode, I_NEW); hlist_add_head_rcu(&inode->i_hash, head); spin_unlock(&inode->i_lock); @@ -1460,7 +1460,7 @@ struct inode *iget_locked(struct super_block *sb, unsigned long ino) if (!old) { inode->i_ino = ino; spin_lock(&inode->i_lock); - inode->i_state = I_NEW; + inode_state_assign(inode, I_NEW); hlist_add_head_rcu(&inode->i_hash, head); spin_unlock(&inode->i_lock); spin_unlock(&inode_hash_lock); @@ -1553,7 +1553,7 @@ EXPORT_SYMBOL(iunique); struct inode *igrab(struct inode *inode) { spin_lock(&inode->i_lock); - if (!(inode->i_state & (I_FREEING|I_WILL_FREE))) { + if (!(inode_state_read(inode) & (I_FREEING | I_WILL_FREE))) { __iget(inode); spin_unlock(&inode->i_lock); } else { @@ -1749,7 +1749,7 @@ struct inode *find_inode_rcu(struct super_block *sb, unsigned long hashval, hlist_for_each_entry_rcu(inode, head, i_hash) { if (inode->i_sb == sb && - !(READ_ONCE(inode->i_state) & (I_FREEING | I_WILL_FREE)) && + !(inode_state_read_once(inode) & (I_FREEING | I_WILL_FREE)) && test(inode, data)) return inode; } @@ -1788,7 +1788,7 @@ struct inode *find_inode_by_ino_rcu(struct super_block *sb, hlist_for_each_entry_rcu(inode, head, i_hash) { if (inode->i_ino == ino && inode->i_sb == sb && - !(READ_ONCE(inode->i_state) & (I_FREEING | I_WILL_FREE))) + !(inode_state_read_once(inode) & (I_FREEING | I_WILL_FREE))) return inode; } return NULL; @@ -1812,7 +1812,7 @@ int insert_inode_locked(struct inode *inode) if (old->i_sb != sb) continue; spin_lock(&old->i_lock); - if (old->i_state & (I_FREEING|I_WILL_FREE)) { + if (inode_state_read(old) & (I_FREEING | I_WILL_FREE)) { spin_unlock(&old->i_lock); continue; } @@ -1820,13 +1820,13 @@ int insert_inode_locked(struct inode *inode) } if (likely(!old)) { spin_lock(&inode->i_lock); - inode->i_state |= I_NEW | I_CREATING; + inode_state_set(inode, I_NEW | I_CREATING); hlist_add_head_rcu(&inode->i_hash, head); spin_unlock(&inode->i_lock); spin_unlock(&inode_hash_lock); return 0; } - if (unlikely(old->i_state & I_CREATING)) { + if (unlikely(inode_state_read(old) & I_CREATING)) { spin_unlock(&old->i_lock); spin_unlock(&inode_hash_lock); return -EBUSY; @@ -1851,7 +1851,7 @@ int insert_inode_locked4(struct inode *inode, unsigned long hashval, might_sleep(); - inode->i_state |= I_CREATING; + inode_state_set_raw(inode, I_CREATING); old = inode_insert5(inode, hashval, test, NULL, data); if (old != inode) { @@ -1886,7 +1886,7 @@ static void iput_final(struct inode *inode) unsigned long state; int drop; - WARN_ON(inode->i_state & I_NEW); + WARN_ON(inode_state_read(inode) & I_NEW); VFS_BUG_ON_INODE(atomic_read(&inode->i_count) != 0, inode); if (op->drop_inode) @@ -1895,7 +1895,7 @@ static void iput_final(struct inode *inode) drop = inode_generic_drop(inode); if (!drop && - !(inode->i_state & I_DONTCACHE) && + !(inode_state_read(inode) & I_DONTCACHE) && (sb->s_flags & SB_ACTIVE)) { __inode_add_lru(inode, true); spin_unlock(&inode->i_lock); @@ -1908,7 +1908,7 @@ static void iput_final(struct inode *inode) */ VFS_BUG_ON_INODE(atomic_read(&inode->i_count) != 0, inode); - state = inode->i_state; + state = inode_state_read(inode); if (!drop) { WRITE_ONCE(inode->i_state, state | I_WILL_FREE); spin_unlock(&inode->i_lock); @@ -1916,7 +1916,7 @@ static void iput_final(struct inode *inode) write_inode_now(inode, 1); spin_lock(&inode->i_lock); - state = inode->i_state; + state = inode_state_read(inode); WARN_ON(state & I_NEW); state &= ~I_WILL_FREE; } @@ -1946,7 +1946,7 @@ void iput(struct inode *inode) retry: lockdep_assert_not_held(&inode->i_lock); - VFS_BUG_ON_INODE(inode->i_state & I_CLEAR, inode); + VFS_BUG_ON_INODE(inode_state_read_once(inode) & I_CLEAR, inode); /* * Note this assert is technically racy as if the count is bogusly * equal to one, then two CPUs racing to further drop it can both @@ -1957,14 +1957,14 @@ void iput(struct inode *inode) if (atomic_add_unless(&inode->i_count, -1, 1)) return; - if ((inode->i_state & I_DIRTY_TIME) && inode->i_nlink) { + if ((inode_state_read_once(inode) & I_DIRTY_TIME) && inode->i_nlink) { trace_writeback_lazytime_iput(inode); mark_inode_dirty_sync(inode); goto retry; } spin_lock(&inode->i_lock); - if (unlikely((inode->i_state & I_DIRTY_TIME) && inode->i_nlink)) { + if (unlikely((inode_state_read(inode) & I_DIRTY_TIME) && inode->i_nlink)) { spin_unlock(&inode->i_lock); goto retry; } diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c index 6f0e6b19383c..0d51f57f7ad7 100644 --- a/fs/isofs/inode.c +++ b/fs/isofs/inode.c @@ -1515,7 +1515,7 @@ struct inode *__isofs_iget(struct super_block *sb, if (!inode) return ERR_PTR(-ENOMEM); - if (inode->i_state & I_NEW) { + if (inode_state_read_once(inode) & I_NEW) { ret = isofs_read_inode(inode, relocated); if (ret < 0) { iget_failed(inode); diff --git a/fs/jffs2/fs.c b/fs/jffs2/fs.c index d175cccb7c55..764bba8ba999 100644 --- a/fs/jffs2/fs.c +++ b/fs/jffs2/fs.c @@ -265,7 +265,7 @@ struct inode *jffs2_iget(struct super_block *sb, unsigned long ino) inode = iget_locked(sb, ino); if (!inode) return ERR_PTR(-ENOMEM); - if (!(inode->i_state & I_NEW)) + if (!(inode_state_read_once(inode) & I_NEW)) return inode; f = JFFS2_INODE_INFO(inode); @@ -373,7 +373,7 @@ void jffs2_dirty_inode(struct inode *inode, int flags) { struct iattr iattr; - if (!(inode->i_state & I_DIRTY_DATASYNC)) { + if (!(inode_state_read_once(inode) & I_DIRTY_DATASYNC)) { jffs2_dbg(2, "%s(): not calling setattr() for ino #%lu\n", __func__, inode->i_ino); return; diff --git a/fs/jfs/file.c b/fs/jfs/file.c index 2a4a288b821c..87ad042221e7 100644 --- a/fs/jfs/file.c +++ b/fs/jfs/file.c @@ -26,8 +26,8 @@ int jfs_fsync(struct file *file, loff_t start, loff_t end, int datasync) return rc; inode_lock(inode); - if (!(inode->i_state & I_DIRTY_ALL) || - (datasync && !(inode->i_state & I_DIRTY_DATASYNC))) { + if (!(inode_state_read_once(inode) & I_DIRTY_ALL) || + (datasync && !(inode_state_read_once(inode) & I_DIRTY_DATASYNC))) { /* Make sure committed changes hit the disk */ jfs_flush_journal(JFS_SBI(inode->i_sb)->log, 1); inode_unlock(inode); diff --git a/fs/jfs/inode.c b/fs/jfs/inode.c index 21f3d029da7d..4709762713ef 100644 --- a/fs/jfs/inode.c +++ b/fs/jfs/inode.c @@ -29,7 +29,7 @@ struct inode *jfs_iget(struct super_block *sb, unsigned long ino) inode = iget_locked(sb, ino); if (!inode) return ERR_PTR(-ENOMEM); - if (!(inode->i_state & I_NEW)) + if (!(inode_state_read_once(inode) & I_NEW)) return inode; ret = diRead(inode); diff --git a/fs/jfs/jfs_txnmgr.c b/fs/jfs/jfs_txnmgr.c index 7840a03e5bcb..c16578af3a77 100644 --- a/fs/jfs/jfs_txnmgr.c +++ b/fs/jfs/jfs_txnmgr.c @@ -1287,7 +1287,7 @@ int txCommit(tid_t tid, /* transaction identifier */ * to verify this, only a trivial s/I_LOCK/I_SYNC/ was done. * Joern */ - if (tblk->u.ip->i_state & I_SYNC) + if (inode_state_read_once(tblk->u.ip) & I_SYNC) tblk->xflag &= ~COMMIT_LAZY; } diff --git a/fs/kernfs/inode.c b/fs/kernfs/inode.c index 457f91c412d4..a36aaee98dce 100644 --- a/fs/kernfs/inode.c +++ b/fs/kernfs/inode.c @@ -251,7 +251,7 @@ struct inode *kernfs_get_inode(struct super_block *sb, struct kernfs_node *kn) struct inode *inode; inode = iget_locked(sb, kernfs_ino(kn)); - if (inode && (inode->i_state & I_NEW)) + if (inode && (inode_state_read_once(inode) & I_NEW)) kernfs_init_inode(kn, inode); return inode; diff --git a/fs/libfs.c b/fs/libfs.c index ce8c496a6940..96e3d7fc7fc6 100644 --- a/fs/libfs.c +++ b/fs/libfs.c @@ -1542,9 +1542,9 @@ int __generic_file_fsync(struct file *file, loff_t start, loff_t end, inode_lock(inode); ret = sync_mapping_buffers(inode->i_mapping); - if (!(inode->i_state & I_DIRTY_ALL)) + if (!(inode_state_read_once(inode) & I_DIRTY_ALL)) goto out; - if (datasync && !(inode->i_state & I_DIRTY_DATASYNC)) + if (datasync && !(inode_state_read_once(inode) & I_DIRTY_DATASYNC)) goto out; err = sync_inode_metadata(inode, 1); @@ -1664,7 +1664,7 @@ struct inode *alloc_anon_inode(struct super_block *s) * list because mark_inode_dirty() will think * that it already _is_ on the dirty list. */ - inode->i_state = I_DIRTY; + inode_state_assign_raw(inode, I_DIRTY); /* * Historically anonymous inodes don't have a type at all and * userspace has come to rely on this. diff --git a/fs/minix/inode.c b/fs/minix/inode.c index 32db676127a9..f220d0e4aedf 100644 --- a/fs/minix/inode.c +++ b/fs/minix/inode.c @@ -589,7 +589,7 @@ struct inode *minix_iget(struct super_block *sb, unsigned long ino) inode = iget_locked(sb, ino); if (!inode) return ERR_PTR(-ENOMEM); - if (!(inode->i_state & I_NEW)) + if (!(inode_state_read_once(inode) & I_NEW)) return inode; if (INODE_VERSION(inode) == MINIX_V1) diff --git a/fs/namei.c b/fs/namei.c index 7377020a2cba..354a9e844721 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -4036,7 +4036,7 @@ int vfs_tmpfile(struct mnt_idmap *idmap, inode = file_inode(file); if (!(open_flag & O_EXCL)) { spin_lock(&inode->i_lock); - inode->i_state |= I_LINKABLE; + inode_state_set(inode, I_LINKABLE); spin_unlock(&inode->i_lock); } security_inode_post_create_tmpfile(idmap, inode); @@ -4931,7 +4931,7 @@ int vfs_link(struct dentry *old_dentry, struct mnt_idmap *idmap, inode_lock(inode); /* Make sure we don't allow creating hardlink to an unlinked file */ - if (inode->i_nlink == 0 && !(inode->i_state & I_LINKABLE)) + if (inode->i_nlink == 0 && !(inode_state_read_once(inode) & I_LINKABLE)) error = -ENOENT; else if (max_links && inode->i_nlink >= max_links) error = -EMLINK; @@ -4941,9 +4941,9 @@ int vfs_link(struct dentry *old_dentry, struct mnt_idmap *idmap, error = dir->i_op->link(old_dentry, dir, new_dentry); } - if (!error && (inode->i_state & I_LINKABLE)) { + if (!error && (inode_state_read_once(inode) & I_LINKABLE)) { spin_lock(&inode->i_lock); - inode->i_state &= ~I_LINKABLE; + inode_state_clear(inode, I_LINKABLE); spin_unlock(&inode->i_lock); } inode_unlock(inode); diff --git a/fs/netfs/misc.c b/fs/netfs/misc.c index 486166460e17..3b97bc35de77 100644 --- a/fs/netfs/misc.c +++ b/fs/netfs/misc.c @@ -147,10 +147,10 @@ bool netfs_dirty_folio(struct address_space *mapping, struct folio *folio) if (!fscache_cookie_valid(cookie)) return true; - if (!(inode->i_state & I_PINNING_NETFS_WB)) { + if (!(inode_state_read_once(inode) & I_PINNING_NETFS_WB)) { spin_lock(&inode->i_lock); - if (!(inode->i_state & I_PINNING_NETFS_WB)) { - inode->i_state |= I_PINNING_NETFS_WB; + if (!(inode_state_read(inode) & I_PINNING_NETFS_WB)) { + inode_state_set(inode, I_PINNING_NETFS_WB); need_use = true; } spin_unlock(&inode->i_lock); @@ -192,7 +192,7 @@ void netfs_clear_inode_writeback(struct inode *inode, const void *aux) { struct fscache_cookie *cookie = netfs_i_cookie(netfs_inode(inode)); - if (inode->i_state & I_PINNING_NETFS_WB) { + if (inode_state_read_once(inode) & I_PINNING_NETFS_WB) { loff_t i_size = i_size_read(inode); fscache_unuse_cookie(cookie, aux, &i_size); } diff --git a/fs/netfs/read_single.c b/fs/netfs/read_single.c index 5c0dc4efc792..8e6264f62a8f 100644 --- a/fs/netfs/read_single.c +++ b/fs/netfs/read_single.c @@ -36,12 +36,12 @@ void netfs_single_mark_inode_dirty(struct inode *inode) mark_inode_dirty(inode); - if (caching && !(inode->i_state & I_PINNING_NETFS_WB)) { + if (caching && !(inode_state_read_once(inode) & I_PINNING_NETFS_WB)) { bool need_use = false; spin_lock(&inode->i_lock); - if (!(inode->i_state & I_PINNING_NETFS_WB)) { - inode->i_state |= I_PINNING_NETFS_WB; + if (!(inode_state_read(inode) & I_PINNING_NETFS_WB)) { + inode_state_set(inode, I_PINNING_NETFS_WB); need_use = true; } spin_unlock(&inode->i_lock); diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c index 18b57c7c2f97..9e3b1f10ce80 100644 --- a/fs/nfs/inode.c +++ b/fs/nfs/inode.c @@ -475,7 +475,7 @@ nfs_fhget(struct super_block *sb, struct nfs_fh *fh, struct nfs_fattr *fattr) goto out_no_inode; } - if (inode->i_state & I_NEW) { + if (inode_state_read_once(inode) & I_NEW) { struct nfs_inode *nfsi = NFS_I(inode); unsigned long now = jiffies; diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index a3135b5af7ee..f157d43d1312 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -317,7 +317,7 @@ pnfs_put_layout_hdr(struct pnfs_layout_hdr *lo) WARN_ONCE(1, "NFS: BUG unfreed layout segments.\n"); pnfs_detach_layout_hdr(lo); /* Notify pnfs_destroy_layout_final() that we're done */ - if (inode->i_state & (I_FREEING | I_CLEAR)) + if (inode_state_read(inode) & (I_FREEING | I_CLEAR)) wake_up_var_locked(lo, &inode->i_lock); spin_unlock(&inode->i_lock); pnfs_free_layout_hdr(lo); diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c index 9cb20d4aeab1..cf4062ac092a 100644 --- a/fs/nfsd/vfs.c +++ b/fs/nfsd/vfs.c @@ -1159,7 +1159,7 @@ static int wait_for_concurrent_writes(struct file *file) dprintk("nfsd: write resume %d\n", task_pid_nr(current)); } - if (inode->i_state & I_DIRTY) { + if (inode_state_read_once(inode) & I_DIRTY) { dprintk("nfsd: write sync %d\n", task_pid_nr(current)); err = vfs_fsync(file, 0); } diff --git a/fs/notify/fsnotify.c b/fs/notify/fsnotify.c index 46bfc543f946..d27ff5e5f165 100644 --- a/fs/notify/fsnotify.c +++ b/fs/notify/fsnotify.c @@ -52,7 +52,7 @@ static void fsnotify_unmount_inodes(struct super_block *sb) * the inode cannot have any associated watches. */ spin_lock(&inode->i_lock); - if (inode->i_state & (I_FREEING|I_WILL_FREE|I_NEW)) { + if (inode_state_read(inode) & (I_FREEING | I_WILL_FREE | I_NEW)) { spin_unlock(&inode->i_lock); continue; } diff --git a/fs/ntfs3/inode.c b/fs/ntfs3/inode.c index 3959f23c487a..08266adc42ba 100644 --- a/fs/ntfs3/inode.c +++ b/fs/ntfs3/inode.c @@ -537,7 +537,7 @@ struct inode *ntfs_iget5(struct super_block *sb, const struct MFT_REF *ref, return ERR_PTR(-ENOMEM); /* If this is a freshly allocated inode, need to read it now. */ - if (inode->i_state & I_NEW) + if (inode_state_read_once(inode) & I_NEW) inode = ntfs_read_mft(inode, name, ref); else if (ref->seq != ntfs_i(inode)->mi.mrec->seq) { /* diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c index 92a6149da9c1..619ff03b15d6 100644 --- a/fs/ocfs2/dlmglue.c +++ b/fs/ocfs2/dlmglue.c @@ -2487,7 +2487,7 @@ int ocfs2_inode_lock_full_nested(struct inode *inode, * which hasn't been populated yet, so clear the refresh flag * and let the caller handle it. */ - if (inode->i_state & I_NEW) { + if (inode_state_read_once(inode) & I_NEW) { status = 0; if (lockres) ocfs2_complete_lock_res_refresh(lockres, 0); diff --git a/fs/ocfs2/inode.c b/fs/ocfs2/inode.c index 84115bf8b464..78f81950c9ee 100644 --- a/fs/ocfs2/inode.c +++ b/fs/ocfs2/inode.c @@ -152,8 +152,8 @@ struct inode *ocfs2_iget(struct ocfs2_super *osb, u64 blkno, unsigned flags, mlog_errno(PTR_ERR(inode)); goto bail; } - trace_ocfs2_iget5_locked(inode->i_state); - if (inode->i_state & I_NEW) { + trace_ocfs2_iget5_locked(inode_state_read_once(inode)); + if (inode_state_read_once(inode) & I_NEW) { rc = ocfs2_read_locked_inode(inode, &args); unlock_new_inode(inode); } diff --git a/fs/omfs/inode.c b/fs/omfs/inode.c index 135c49c5d848..db80af312678 100644 --- a/fs/omfs/inode.c +++ b/fs/omfs/inode.c @@ -212,7 +212,7 @@ struct inode *omfs_iget(struct super_block *sb, ino_t ino) inode = iget_locked(sb, ino); if (!inode) return ERR_PTR(-ENOMEM); - if (!(inode->i_state & I_NEW)) + if (!(inode_state_read_once(inode) & I_NEW)) return inode; bh = omfs_bread(inode->i_sb, ino); diff --git a/fs/openpromfs/inode.c b/fs/openpromfs/inode.c index 26ecda0e4d19..fb8d84bdedfb 100644 --- a/fs/openpromfs/inode.c +++ b/fs/openpromfs/inode.c @@ -236,7 +236,7 @@ static struct dentry *openpromfs_lookup(struct inode *dir, struct dentry *dentry mutex_unlock(&op_mutex); if (IS_ERR(inode)) return ERR_CAST(inode); - if (inode->i_state & I_NEW) { + if (inode_state_read_once(inode) & I_NEW) { simple_inode_init_ts(inode); ent_oi = OP_I(inode); ent_oi->type = ent_type; diff --git a/fs/orangefs/inode.c b/fs/orangefs/inode.c index a01400cd41fd..1eb4fbe35a46 100644 --- a/fs/orangefs/inode.c +++ b/fs/orangefs/inode.c @@ -1041,7 +1041,7 @@ struct inode *orangefs_iget(struct super_block *sb, if (!inode) return ERR_PTR(-ENOMEM); - if (!(inode->i_state & I_NEW)) + if (!(inode_state_read_once(inode) & I_NEW)) return inode; error = orangefs_inode_getattr(inode, ORANGEFS_GETATTR_NEW); diff --git a/fs/orangefs/orangefs-utils.c b/fs/orangefs/orangefs-utils.c index 0fdceb00ca07..9ab1119ebd28 100644 --- a/fs/orangefs/orangefs-utils.c +++ b/fs/orangefs/orangefs-utils.c @@ -247,7 +247,7 @@ int orangefs_inode_getattr(struct inode *inode, int flags) spin_lock(&inode->i_lock); /* Must have all the attributes in the mask and be within cache time. */ if ((!flags && time_before(jiffies, orangefs_inode->getattr_time)) || - orangefs_inode->attr_valid || inode->i_state & I_DIRTY_PAGES) { + orangefs_inode->attr_valid || inode_state_read(inode) & I_DIRTY_PAGES) { if (orangefs_inode->attr_valid) { spin_unlock(&inode->i_lock); write_inode_now(inode, 1); @@ -281,13 +281,13 @@ int orangefs_inode_getattr(struct inode *inode, int flags) spin_lock(&inode->i_lock); /* Must have all the attributes in the mask and be within cache time. */ if ((!flags && time_before(jiffies, orangefs_inode->getattr_time)) || - orangefs_inode->attr_valid || inode->i_state & I_DIRTY_PAGES) { + orangefs_inode->attr_valid || inode_state_read(inode) & I_DIRTY_PAGES) { if (orangefs_inode->attr_valid) { spin_unlock(&inode->i_lock); write_inode_now(inode, 1); goto again2; } - if (inode->i_state & I_DIRTY_PAGES) { + if (inode_state_read(inode) & I_DIRTY_PAGES) { ret = 0; goto out_unlock; } diff --git a/fs/pipe.c b/fs/pipe.c index 42fead1efe52..2d0fed2ecbfd 100644 --- a/fs/pipe.c +++ b/fs/pipe.c @@ -908,7 +908,7 @@ static struct inode * get_pipe_inode(void) * list because "mark_inode_dirty()" will think * that it already _is_ on the dirty list. */ - inode->i_state = I_DIRTY; + inode_state_assign_raw(inode, I_DIRTY); inode->i_mode = S_IFIFO | S_IRUSR | S_IWUSR; inode->i_uid = current_fsuid(); inode->i_gid = current_fsgid(); diff --git a/fs/qnx4/inode.c b/fs/qnx4/inode.c index e399e2dd3a12..31d78da203ea 100644 --- a/fs/qnx4/inode.c +++ b/fs/qnx4/inode.c @@ -290,7 +290,7 @@ struct inode *qnx4_iget(struct super_block *sb, unsigned long ino) inode = iget_locked(sb, ino); if (!inode) return ERR_PTR(-ENOMEM); - if (!(inode->i_state & I_NEW)) + if (!(inode_state_read_once(inode) & I_NEW)) return inode; qnx4_inode = qnx4_raw_inode(inode); diff --git a/fs/qnx6/inode.c b/fs/qnx6/inode.c index 3310d1ad4d0e..88d285005083 100644 --- a/fs/qnx6/inode.c +++ b/fs/qnx6/inode.c @@ -521,7 +521,7 @@ struct inode *qnx6_iget(struct super_block *sb, unsigned ino) inode = iget_locked(sb, ino); if (!inode) return ERR_PTR(-ENOMEM); - if (!(inode->i_state & I_NEW)) + if (!(inode_state_read_once(inode) & I_NEW)) return inode; ei = QNX6_I(inode); diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c index 6c4a6ee1fa2b..376739f6420e 100644 --- a/fs/quota/dquot.c +++ b/fs/quota/dquot.c @@ -1033,7 +1033,7 @@ static int add_dquot_ref(struct super_block *sb, int type) spin_lock(&sb->s_inode_list_lock); list_for_each_entry(inode, &sb->s_inodes, i_sb_list) { spin_lock(&inode->i_lock); - if ((inode->i_state & (I_FREEING|I_WILL_FREE|I_NEW)) || + if ((inode_state_read(inode) & (I_FREEING | I_WILL_FREE | I_NEW)) || !atomic_read(&inode->i_writecount) || !dqinit_needed(inode, type)) { spin_unlock(&inode->i_lock); diff --git a/fs/romfs/super.c b/fs/romfs/super.c index 0addcc849ff2..360b00854115 100644 --- a/fs/romfs/super.c +++ b/fs/romfs/super.c @@ -302,7 +302,7 @@ static struct inode *romfs_iget(struct super_block *sb, unsigned long pos) if (!i) return ERR_PTR(-ENOMEM); - if (!(i->i_state & I_NEW)) + if (!(inode_state_read_once(i) & I_NEW)) return i; /* precalculate the data offset */ diff --git a/fs/squashfs/inode.c b/fs/squashfs/inode.c index cceae3b78698..82b687414e65 100644 --- a/fs/squashfs/inode.c +++ b/fs/squashfs/inode.c @@ -86,7 +86,7 @@ struct inode *squashfs_iget(struct super_block *sb, long long ino, if (!inode) return ERR_PTR(-ENOMEM); - if (!(inode->i_state & I_NEW)) + if (!(inode_state_read_once(inode) & I_NEW)) return inode; err = squashfs_read_inode(inode, ino); diff --git a/fs/sync.c b/fs/sync.c index 2955cd4c77a3..73b3efb35b26 100644 --- a/fs/sync.c +++ b/fs/sync.c @@ -182,7 +182,7 @@ int vfs_fsync_range(struct file *file, loff_t start, loff_t end, int datasync) if (!file->f_op->fsync) return -EINVAL; - if (!datasync && (inode->i_state & I_DIRTY_TIME)) + if (!datasync && (inode_state_read_once(inode) & I_DIRTY_TIME)) mark_inode_dirty_sync(inode); return file->f_op->fsync(file, start, end, datasync); } diff --git a/fs/ubifs/file.c b/fs/ubifs/file.c index ca41ce8208c4..c3265b8804f5 100644 --- a/fs/ubifs/file.c +++ b/fs/ubifs/file.c @@ -1323,7 +1323,7 @@ int ubifs_fsync(struct file *file, loff_t start, loff_t end, int datasync) inode_lock(inode); /* Synchronize the inode unless this is a 'datasync()' call. */ - if (!datasync || (inode->i_state & I_DIRTY_DATASYNC)) { + if (!datasync || (inode_state_read_once(inode) & I_DIRTY_DATASYNC)) { err = inode->i_sb->s_op->write_inode(inode, NULL); if (err) goto out; diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c index 46952a33c4e6..f453c37cee37 100644 --- a/fs/ubifs/super.c +++ b/fs/ubifs/super.c @@ -114,7 +114,7 @@ struct inode *ubifs_iget(struct super_block *sb, unsigned long inum) inode = iget_locked(sb, inum); if (!inode) return ERR_PTR(-ENOMEM); - if (!(inode->i_state & I_NEW)) + if (!(inode_state_read_once(inode) & I_NEW)) return inode; ui = ubifs_inode(inode); diff --git a/fs/udf/inode.c b/fs/udf/inode.c index a79d73f28aa7..7fae8002344a 100644 --- a/fs/udf/inode.c +++ b/fs/udf/inode.c @@ -1962,7 +1962,7 @@ struct inode *__udf_iget(struct super_block *sb, struct kernel_lb_addr *ino, if (!inode) return ERR_PTR(-ENOMEM); - if (!(inode->i_state & I_NEW)) { + if (!(inode_state_read_once(inode) & I_NEW)) { if (UDF_I(inode)->i_hidden != hidden_inode) { iput(inode); return ERR_PTR(-EFSCORRUPTED); diff --git a/fs/ufs/inode.c b/fs/ufs/inode.c index 8361c00e8fa6..e2b0a35de2a7 100644 --- a/fs/ufs/inode.c +++ b/fs/ufs/inode.c @@ -655,7 +655,7 @@ struct inode *ufs_iget(struct super_block *sb, unsigned long ino) inode = iget_locked(sb, ino); if (!inode) return ERR_PTR(-ENOMEM); - if (!(inode->i_state & I_NEW)) + if (!(inode_state_read_once(inode) & I_NEW)) return inode; ufsi = UFS_I(inode); diff --git a/fs/zonefs/super.c b/fs/zonefs/super.c index 70be0b3dda49..086a31269198 100644 --- a/fs/zonefs/super.c +++ b/fs/zonefs/super.c @@ -644,7 +644,7 @@ static struct inode *zonefs_get_file_inode(struct inode *dir, inode = iget_locked(sb, ino); if (!inode) return ERR_PTR(-ENOMEM); - if (!(inode->i_state & I_NEW)) { + if (!(inode_state_read_once(inode) & I_NEW)) { WARN_ON_ONCE(inode->i_private != z); return inode; } @@ -683,7 +683,7 @@ static struct inode *zonefs_get_zgroup_inode(struct super_block *sb, inode = iget_locked(sb, ino); if (!inode) return ERR_PTR(-ENOMEM); - if (!(inode->i_state & I_NEW)) + if (!(inode_state_read_once(inode) & I_NEW)) return inode; inode->i_ino = ino; diff --git a/mm/backing-dev.c b/mm/backing-dev.c index 41b6c9386b69..c5740c6d37a2 100644 --- a/mm/backing-dev.c +++ b/mm/backing-dev.c @@ -72,7 +72,7 @@ static void collect_wb_stats(struct wb_stats *stats, list_for_each_entry(inode, &wb->b_more_io, i_io_list) stats->nr_more_io++; list_for_each_entry(inode, &wb->b_dirty_time, i_io_list) - if (inode->i_state & I_DIRTY_TIME) + if (inode_state_read_once(inode) & I_DIRTY_TIME) stats->nr_dirty_time++; spin_unlock(&wb->list_lock); diff --git a/security/landlock/fs.c b/security/landlock/fs.c index 0bade2c5aa1d..d4d72f406d58 100644 --- a/security/landlock/fs.c +++ b/security/landlock/fs.c @@ -1296,7 +1296,7 @@ static void hook_sb_delete(struct super_block *const sb) * second call to iput() for the same Landlock object. Also * checks I_NEW because such inode cannot be tied to an object. */ - if (inode->i_state & (I_FREEING | I_WILL_FREE | I_NEW)) { + if (inode_state_read(inode) & (I_FREEING | I_WILL_FREE | I_NEW)) { spin_unlock(&inode->i_lock); continue; } From f5aa78e2be066f3801785094f1b55a3114fe461a Mon Sep 17 00:00:00 2001 From: Mateusz Guzik Date: Thu, 9 Oct 2025 09:59:19 +0200 Subject: [PATCH 09/22] Manual conversion to use ->i_state accessors of all places not covered by coccinelle Nothing to look at apart from iput_final(). Signed-off-by: Mateusz Guzik Signed-off-by: Christian Brauner --- Documentation/filesystems/porting.rst | 2 +- fs/afs/inode.c | 2 +- fs/ext4/inode.c | 10 +++++----- fs/ext4/orphan.c | 4 ++-- fs/inode.c | 18 ++++++++---------- include/linux/backing-dev.h | 2 +- include/linux/fs.h | 6 +++--- include/linux/writeback.h | 2 +- include/trace/events/writeback.h | 8 ++++---- 9 files changed, 26 insertions(+), 28 deletions(-) diff --git a/Documentation/filesystems/porting.rst b/Documentation/filesystems/porting.rst index 7233b04668fc..35f027981b21 100644 --- a/Documentation/filesystems/porting.rst +++ b/Documentation/filesystems/porting.rst @@ -211,7 +211,7 @@ test and set for you. e.g.:: inode = iget_locked(sb, ino); - if (inode->i_state & I_NEW) { + if (inode_state_read_once(inode) & I_NEW) { err = read_inode_from_disk(inode); if (err < 0) { iget_failed(inode); diff --git a/fs/afs/inode.c b/fs/afs/inode.c index 2fe2ccf59c7a..dde1857fcabb 100644 --- a/fs/afs/inode.c +++ b/fs/afs/inode.c @@ -427,7 +427,7 @@ static void afs_fetch_status_success(struct afs_operation *op) struct afs_vnode *vnode = vp->vnode; int ret; - if (vnode->netfs.inode.i_state & I_NEW) { + if (inode_state_read_once(&vnode->netfs.inode) & I_NEW) { ret = afs_inode_init_from_status(op, vp, vnode); afs_op_set_error(op, ret); if (ret == 0) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index f9e4ac87211e..b864e9645f85 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -425,7 +425,7 @@ void ext4_check_map_extents_env(struct inode *inode) if (!S_ISREG(inode->i_mode) || IS_NOQUOTA(inode) || IS_VERITY(inode) || is_special_ino(inode->i_sb, inode->i_ino) || - (inode->i_state & (I_FREEING | I_WILL_FREE | I_NEW)) || + (inode_state_read_once(inode) & (I_FREEING | I_WILL_FREE | I_NEW)) || ext4_test_inode_flag(inode, EXT4_INODE_EA_INODE) || ext4_verity_in_progress(inode)) return; @@ -3473,7 +3473,7 @@ static bool ext4_inode_datasync_dirty(struct inode *inode) /* Any metadata buffers to write? */ if (!list_empty(&inode->i_mapping->i_private_list)) return true; - return inode->i_state & I_DIRTY_DATASYNC; + return inode_state_read_once(inode) & I_DIRTY_DATASYNC; } static void ext4_set_iomap(struct inode *inode, struct iomap *iomap, @@ -4552,7 +4552,7 @@ int ext4_truncate(struct inode *inode) * or it's a completely new inode. In those cases we might not * have i_rwsem locked because it's not necessary. */ - if (!(inode->i_state & (I_NEW|I_FREEING))) + if (!(inode_state_read_once(inode) & (I_NEW | I_FREEING))) WARN_ON(!inode_is_locked(inode)); trace_ext4_truncate_enter(inode); @@ -5210,7 +5210,7 @@ struct inode *__ext4_iget(struct super_block *sb, unsigned long ino, inode = iget_locked(sb, ino); if (!inode) return ERR_PTR(-ENOMEM); - if (!(inode->i_state & I_NEW)) { + if (!(inode_state_read_once(inode) & I_NEW)) { ret = check_igot_inode(inode, flags, function, line); if (ret) { iput(inode); @@ -5541,7 +5541,7 @@ static void __ext4_update_other_inode_time(struct super_block *sb, if (inode_is_dirtytime_only(inode)) { struct ext4_inode_info *ei = EXT4_I(inode); - inode->i_state &= ~I_DIRTY_TIME; + inode_state_clear(inode, I_DIRTY_TIME); spin_unlock(&inode->i_lock); spin_lock(&ei->i_raw_lock); diff --git a/fs/ext4/orphan.c b/fs/ext4/orphan.c index 33c3a89396b1..c4903d98ff81 100644 --- a/fs/ext4/orphan.c +++ b/fs/ext4/orphan.c @@ -107,7 +107,7 @@ int ext4_orphan_add(handle_t *handle, struct inode *inode) if (!sbi->s_journal || is_bad_inode(inode)) return 0; - WARN_ON_ONCE(!(inode->i_state & (I_NEW | I_FREEING)) && + WARN_ON_ONCE(!(inode_state_read_once(inode) & (I_NEW | I_FREEING)) && !inode_is_locked(inode)); if (ext4_inode_orphan_tracked(inode)) return 0; @@ -232,7 +232,7 @@ int ext4_orphan_del(handle_t *handle, struct inode *inode) if (!sbi->s_journal && !(sbi->s_mount_state & EXT4_ORPHAN_FS)) return 0; - WARN_ON_ONCE(!(inode->i_state & (I_NEW | I_FREEING)) && + WARN_ON_ONCE(!(inode_state_read_once(inode) & (I_NEW | I_FREEING)) && !inode_is_locked(inode)); if (ext4_test_inode_state(inode, EXT4_STATE_ORPHAN_FILE)) return ext4_orphan_file_del(handle, inode); diff --git a/fs/inode.c b/fs/inode.c index f094ed3e6f30..3153d725859c 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -829,7 +829,7 @@ static void evict(struct inode *inode) * This also means we don't need any fences for the call below. */ inode_wake_up_bit(inode, __I_NEW); - BUG_ON(inode->i_state != (I_FREEING | I_CLEAR)); + BUG_ON(inode_state_read_once(inode) != (I_FREEING | I_CLEAR)); destroy_inode(inode); } @@ -1883,7 +1883,6 @@ static void iput_final(struct inode *inode) { struct super_block *sb = inode->i_sb; const struct super_operations *op = inode->i_sb->s_op; - unsigned long state; int drop; WARN_ON(inode_state_read(inode) & I_NEW); @@ -1908,20 +1907,19 @@ static void iput_final(struct inode *inode) */ VFS_BUG_ON_INODE(atomic_read(&inode->i_count) != 0, inode); - state = inode_state_read(inode); - if (!drop) { - WRITE_ONCE(inode->i_state, state | I_WILL_FREE); + if (drop) { + inode_state_set(inode, I_FREEING); + } else { + inode_state_set(inode, I_WILL_FREE); spin_unlock(&inode->i_lock); write_inode_now(inode, 1); spin_lock(&inode->i_lock); - state = inode_state_read(inode); - WARN_ON(state & I_NEW); - state &= ~I_WILL_FREE; + WARN_ON(inode_state_read(inode) & I_NEW); + inode_state_replace(inode, I_WILL_FREE, I_FREEING); } - WRITE_ONCE(inode->i_state, state | I_FREEING); if (!list_empty(&inode->i_lru)) inode_lru_list_del(inode); spin_unlock(&inode->i_lock); @@ -2985,7 +2983,7 @@ void dump_inode(struct inode *inode, const char *reason) pr_warn("%s encountered for inode %px\n" "fs %s mode %ho opflags 0x%hx flags 0x%x state 0x%x count %d\n", reason, inode, sb->s_type->name, inode->i_mode, inode->i_opflags, - inode->i_flags, inode->i_state, atomic_read(&inode->i_count)); + inode->i_flags, inode_state_read_once(inode), atomic_read(&inode->i_count)); } EXPORT_SYMBOL(dump_inode); diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h index 065cba5dc111..0c8342747cab 100644 --- a/include/linux/backing-dev.h +++ b/include/linux/backing-dev.h @@ -280,7 +280,7 @@ unlocked_inode_to_wb_begin(struct inode *inode, struct wb_lock_cookie *cookie) * Paired with a release fence in inode_do_switch_wbs() and * ensures that we see the new wb if we see cleared I_WB_SWITCH. */ - cookie->locked = inode->i_state & I_WB_SWITCH; + cookie->locked = inode_state_read_once(inode) & I_WB_SWITCH; smp_rmb(); if (unlikely(cookie->locked)) diff --git a/include/linux/fs.h b/include/linux/fs.h index 909eb1e68637..77b6486dcae7 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1026,7 +1026,7 @@ static inline void inode_fake_hash(struct inode *inode) static inline void wait_on_inode(struct inode *inode) { wait_var_event(inode_state_wait_address(inode, __I_NEW), - !(READ_ONCE(inode->i_state) & I_NEW)); + !(inode_state_read_once(inode) & I_NEW)); /* * Pairs with routines clearing I_NEW. */ @@ -2719,8 +2719,8 @@ static inline int icount_read(const struct inode *inode) */ static inline bool inode_is_dirtytime_only(struct inode *inode) { - return (inode->i_state & (I_DIRTY_TIME | I_NEW | - I_FREEING | I_WILL_FREE)) == I_DIRTY_TIME; + return (inode_state_read_once(inode) & + (I_DIRTY_TIME | I_NEW | I_FREEING | I_WILL_FREE)) == I_DIRTY_TIME; } extern void inc_nlink(struct inode *inode); diff --git a/include/linux/writeback.h b/include/linux/writeback.h index 06195c2a535b..102071ffedcb 100644 --- a/include/linux/writeback.h +++ b/include/linux/writeback.h @@ -227,7 +227,7 @@ static inline void inode_attach_wb(struct inode *inode, struct folio *folio) static inline void inode_detach_wb(struct inode *inode) { if (inode->i_wb) { - WARN_ON_ONCE(!(inode->i_state & I_CLEAR)); + WARN_ON_ONCE(!(inode_state_read_once(inode) & I_CLEAR)); wb_put(inode->i_wb); inode->i_wb = NULL; } diff --git a/include/trace/events/writeback.h b/include/trace/events/writeback.h index c08aff044e80..311a341e6fe4 100644 --- a/include/trace/events/writeback.h +++ b/include/trace/events/writeback.h @@ -120,7 +120,7 @@ DECLARE_EVENT_CLASS(writeback_dirty_inode_template, /* may be called for files on pseudo FSes w/ unregistered bdi */ strscpy_pad(__entry->name, bdi_dev_name(bdi), 32); __entry->ino = inode->i_ino; - __entry->state = inode->i_state; + __entry->state = inode_state_read_once(inode); __entry->flags = flags; ), @@ -748,7 +748,7 @@ TRACE_EVENT(writeback_sb_inodes_requeue, strscpy_pad(__entry->name, bdi_dev_name(inode_to_bdi(inode)), 32); __entry->ino = inode->i_ino; - __entry->state = inode->i_state; + __entry->state = inode_state_read_once(inode); __entry->dirtied_when = inode->dirtied_when; __entry->cgroup_ino = __trace_wb_assign_cgroup(inode_to_wb(inode)); ), @@ -787,7 +787,7 @@ DECLARE_EVENT_CLASS(writeback_single_inode_template, strscpy_pad(__entry->name, bdi_dev_name(inode_to_bdi(inode)), 32); __entry->ino = inode->i_ino; - __entry->state = inode->i_state; + __entry->state = inode_state_read_once(inode); __entry->dirtied_when = inode->dirtied_when; __entry->writeback_index = inode->i_mapping->writeback_index; __entry->nr_to_write = nr_to_write; @@ -839,7 +839,7 @@ DECLARE_EVENT_CLASS(writeback_inode_template, TP_fast_assign( __entry->dev = inode->i_sb->s_dev; __entry->ino = inode->i_ino; - __entry->state = inode->i_state; + __entry->state = inode_state_read_once(inode); __entry->mode = inode->i_mode; __entry->dirtied_when = inode->dirtied_when; ), From 7b12a794bf863fead0f705c09d6233fa04d15786 Mon Sep 17 00:00:00 2001 From: Mateusz Guzik Date: Thu, 9 Oct 2025 09:59:20 +0200 Subject: [PATCH 10/22] btrfs: use the new ->i_state accessors Change generated with coccinelle and fixed up by hand as appropriate. Signed-off-by: Mateusz Guzik Signed-off-by: Christian Brauner --- fs/btrfs/inode.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 3b1b3a0553ee..433ffe231546 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -3884,7 +3884,7 @@ static int btrfs_add_inode_to_root(struct btrfs_inode *inode, bool prealloc) ASSERT(ret != -ENOMEM); return ret; } else if (existing) { - WARN_ON(!(existing->vfs_inode.i_state & (I_WILL_FREE | I_FREEING))); + WARN_ON(!(inode_state_read_once(&existing->vfs_inode) & (I_WILL_FREE | I_FREEING))); } return 0; @@ -5361,7 +5361,7 @@ static void evict_inode_truncate_pages(struct inode *inode) struct extent_io_tree *io_tree = &BTRFS_I(inode)->io_tree; struct rb_node *node; - ASSERT(inode->i_state & I_FREEING); + ASSERT(inode_state_read_once(inode) & I_FREEING); truncate_inode_pages_final(&inode->i_data); btrfs_drop_extent_map_range(BTRFS_I(inode), 0, (u64)-1, false); @@ -5799,7 +5799,7 @@ struct btrfs_inode *btrfs_iget_path(u64 ino, struct btrfs_root *root, if (!inode) return ERR_PTR(-ENOMEM); - if (!(inode->vfs_inode.i_state & I_NEW)) + if (!(inode_state_read_once(&inode->vfs_inode) & I_NEW)) return inode; ret = btrfs_read_locked_inode(inode, path); @@ -5823,7 +5823,7 @@ struct btrfs_inode *btrfs_iget(u64 ino, struct btrfs_root *root) if (!inode) return ERR_PTR(-ENOMEM); - if (!(inode->vfs_inode.i_state & I_NEW)) + if (!(inode_state_read_once(&inode->vfs_inode) & I_NEW)) return inode; path = btrfs_alloc_path(); @@ -7480,7 +7480,7 @@ static void btrfs_invalidate_folio(struct folio *folio, size_t offset, u64 page_start = folio_pos(folio); u64 page_end = page_start + folio_size(folio) - 1; u64 cur; - int inode_evicting = inode->vfs_inode.i_state & I_FREEING; + int inode_evicting = inode_state_read_once(&inode->vfs_inode) & I_FREEING; /* * We have folio locked so no new ordered extent can be created on this From fa49168ea091b5ede628debe9fa0ff7af770e108 Mon Sep 17 00:00:00 2001 From: Mateusz Guzik Date: Thu, 9 Oct 2025 09:59:21 +0200 Subject: [PATCH 11/22] ceph: use the new ->i_state accessors Change generated with coccinelle and fixed up by hand as appropriate. Signed-off-by: Mateusz Guzik Signed-off-by: Christian Brauner --- fs/ceph/cache.c | 2 +- fs/ceph/crypto.c | 4 ++-- fs/ceph/file.c | 4 ++-- fs/ceph/inode.c | 28 ++++++++++++++-------------- 4 files changed, 19 insertions(+), 19 deletions(-) diff --git a/fs/ceph/cache.c b/fs/ceph/cache.c index 930fbd54d2c8..f678bab189d8 100644 --- a/fs/ceph/cache.c +++ b/fs/ceph/cache.c @@ -26,7 +26,7 @@ void ceph_fscache_register_inode_cookie(struct inode *inode) return; /* Only new inodes! */ - if (!(inode->i_state & I_NEW)) + if (!(inode_state_read_once(inode) & I_NEW)) return; WARN_ON_ONCE(ci->netfs.cache); diff --git a/fs/ceph/crypto.c b/fs/ceph/crypto.c index 7026e794813c..928746b92512 100644 --- a/fs/ceph/crypto.c +++ b/fs/ceph/crypto.c @@ -329,7 +329,7 @@ int ceph_encode_encrypted_dname(struct inode *parent, char *buf, int elen) out: kfree(cryptbuf); if (dir != parent) { - if ((dir->i_state & I_NEW)) + if ((inode_state_read_once(dir) & I_NEW)) discard_new_inode(dir); else iput(dir); @@ -438,7 +438,7 @@ int ceph_fname_to_usr(const struct ceph_fname *fname, struct fscrypt_str *tname, fscrypt_fname_free_buffer(&_tname); out_inode: if (dir != fname->dir) { - if ((dir->i_state & I_NEW)) + if ((inode_state_read_once(dir) & I_NEW)) discard_new_inode(dir); else iput(dir); diff --git a/fs/ceph/file.c b/fs/ceph/file.c index 99b30f784ee2..983390069f73 100644 --- a/fs/ceph/file.c +++ b/fs/ceph/file.c @@ -740,7 +740,7 @@ static int ceph_finish_async_create(struct inode *dir, struct inode *inode, vino.ino, ceph_ino(dir), dentry->d_name.name); ceph_dir_clear_ordered(dir); ceph_init_inode_acls(inode, as_ctx); - if (inode->i_state & I_NEW) { + if (inode_state_read_once(inode) & I_NEW) { /* * If it's not I_NEW, then someone created this before * we got here. Assume the server is aware of it at @@ -901,7 +901,7 @@ int ceph_atomic_open(struct inode *dir, struct dentry *dentry, new_inode = NULL; goto out_req; } - WARN_ON_ONCE(!(new_inode->i_state & I_NEW)); + WARN_ON_ONCE(!(inode_state_read_once(new_inode) & I_NEW)); spin_lock(&dentry->d_lock); di->flags |= CEPH_DENTRY_ASYNC_CREATE; diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c index a6e260d9e420..37d3a2477c17 100644 --- a/fs/ceph/inode.c +++ b/fs/ceph/inode.c @@ -132,7 +132,7 @@ struct inode *ceph_new_inode(struct inode *dir, struct dentry *dentry, goto out_err; } - inode->i_state = 0; + inode_state_assign_raw(inode, 0); inode->i_mode = *mode; err = ceph_security_init_secctx(dentry, *mode, as_ctx); @@ -201,7 +201,7 @@ struct inode *ceph_get_inode(struct super_block *sb, struct ceph_vino vino, doutc(cl, "on %llx=%llx.%llx got %p new %d\n", ceph_present_inode(inode), ceph_vinop(inode), inode, - !!(inode->i_state & I_NEW)); + !!(inode_state_read_once(inode) & I_NEW)); return inode; } @@ -228,7 +228,7 @@ struct inode *ceph_get_snapdir(struct inode *parent) goto err; } - if (!(inode->i_state & I_NEW) && !S_ISDIR(inode->i_mode)) { + if (!(inode_state_read_once(inode) & I_NEW) && !S_ISDIR(inode->i_mode)) { pr_warn_once_client(cl, "bad snapdir inode type (mode=0%o)\n", inode->i_mode); goto err; @@ -261,7 +261,7 @@ struct inode *ceph_get_snapdir(struct inode *parent) } } #endif - if (inode->i_state & I_NEW) { + if (inode_state_read_once(inode) & I_NEW) { inode->i_op = &ceph_snapdir_iops; inode->i_fop = &ceph_snapdir_fops; ci->i_snap_caps = CEPH_CAP_PIN; /* so we can open */ @@ -270,7 +270,7 @@ struct inode *ceph_get_snapdir(struct inode *parent) return inode; err: - if ((inode->i_state & I_NEW)) + if ((inode_state_read_once(inode) & I_NEW)) discard_new_inode(inode); else iput(inode); @@ -744,7 +744,7 @@ void ceph_evict_inode(struct inode *inode) netfs_wait_for_outstanding_io(inode); truncate_inode_pages_final(&inode->i_data); - if (inode->i_state & I_PINNING_NETFS_WB) + if (inode_state_read_once(inode) & I_PINNING_NETFS_WB) ceph_fscache_unuse_cookie(inode, true); clear_inode(inode); @@ -1013,7 +1013,7 @@ int ceph_fill_inode(struct inode *inode, struct page *locked_page, le64_to_cpu(info->version), ci->i_version); /* Once I_NEW is cleared, we can't change type or dev numbers */ - if (inode->i_state & I_NEW) { + if (inode_state_read_once(inode) & I_NEW) { inode->i_mode = mode; } else { if (inode_wrong_type(inode, mode)) { @@ -1090,7 +1090,7 @@ int ceph_fill_inode(struct inode *inode, struct page *locked_page, #ifdef CONFIG_FS_ENCRYPTION if (iinfo->fscrypt_auth_len && - ((inode->i_state & I_NEW) || (ci->fscrypt_auth_len == 0))) { + ((inode_state_read_once(inode) & I_NEW) || (ci->fscrypt_auth_len == 0))) { kfree(ci->fscrypt_auth); ci->fscrypt_auth_len = iinfo->fscrypt_auth_len; ci->fscrypt_auth = iinfo->fscrypt_auth; @@ -1692,13 +1692,13 @@ int ceph_fill_trace(struct super_block *sb, struct ceph_mds_request *req) pr_err_client(cl, "badness %p %llx.%llx\n", in, ceph_vinop(in)); req->r_target_inode = NULL; - if (in->i_state & I_NEW) + if (inode_state_read_once(in) & I_NEW) discard_new_inode(in); else iput(in); goto done; } - if (in->i_state & I_NEW) + if (inode_state_read_once(in) & I_NEW) unlock_new_inode(in); } @@ -1898,11 +1898,11 @@ static int readdir_prepopulate_inodes_only(struct ceph_mds_request *req, pr_err_client(cl, "inode badness on %p got %d\n", in, rc); err = rc; - if (in->i_state & I_NEW) { + if (inode_state_read_once(in) & I_NEW) { ihold(in); discard_new_inode(in); } - } else if (in->i_state & I_NEW) { + } else if (inode_state_read_once(in) & I_NEW) { unlock_new_inode(in); } @@ -2114,7 +2114,7 @@ int ceph_readdir_prepopulate(struct ceph_mds_request *req, pr_err_client(cl, "badness on %p %llx.%llx\n", in, ceph_vinop(in)); if (d_really_is_negative(dn)) { - if (in->i_state & I_NEW) { + if (inode_state_read_once(in) & I_NEW) { ihold(in); discard_new_inode(in); } @@ -2124,7 +2124,7 @@ int ceph_readdir_prepopulate(struct ceph_mds_request *req, err = ret; goto next_item; } - if (in->i_state & I_NEW) + if (inode_state_read_once(in) & I_NEW) unlock_new_inode(in); if (d_really_is_negative(dn)) { From f5a67689ba6a439d36b2544fa61c26fe1622e52a Mon Sep 17 00:00:00 2001 From: Mateusz Guzik Date: Thu, 9 Oct 2025 09:59:22 +0200 Subject: [PATCH 12/22] smb: use the new ->i_state accessors Change generated with coccinelle and fixed up by hand as appropriate. Signed-off-by: Mateusz Guzik Signed-off-by: Christian Brauner --- fs/smb/client/cifsfs.c | 2 +- fs/smb/client/inode.c | 14 +++++++------- 2 files changed, 8 insertions(+), 8 deletions(-) diff --git a/fs/smb/client/cifsfs.c b/fs/smb/client/cifsfs.c index 05b1fa76e8cc..552cf46d754c 100644 --- a/fs/smb/client/cifsfs.c +++ b/fs/smb/client/cifsfs.c @@ -500,7 +500,7 @@ cifs_evict_inode(struct inode *inode) { netfs_wait_for_outstanding_io(inode); truncate_inode_pages_final(&inode->i_data); - if (inode->i_state & I_PINNING_NETFS_WB) + if (inode_state_read_once(inode) & I_PINNING_NETFS_WB) cifs_fscache_unuse_inode_cookie(inode, true); cifs_fscache_release_inode_cookie(inode); clear_inode(inode); diff --git a/fs/smb/client/inode.c b/fs/smb/client/inode.c index 239dd84a336f..cc6871234ae9 100644 --- a/fs/smb/client/inode.c +++ b/fs/smb/client/inode.c @@ -101,7 +101,7 @@ cifs_revalidate_cache(struct inode *inode, struct cifs_fattr *fattr) cifs_dbg(FYI, "%s: revalidating inode %llu\n", __func__, cifs_i->uniqueid); - if (inode->i_state & I_NEW) { + if (inode_state_read_once(inode) & I_NEW) { cifs_dbg(FYI, "%s: inode %llu is new\n", __func__, cifs_i->uniqueid); return; @@ -146,7 +146,7 @@ cifs_nlink_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr) */ if (fattr->cf_flags & CIFS_FATTR_UNKNOWN_NLINK) { /* only provide fake values on a new inode */ - if (inode->i_state & I_NEW) { + if (inode_state_read_once(inode) & I_NEW) { if (fattr->cf_cifsattrs & ATTR_DIRECTORY) set_nlink(inode, 2); else @@ -167,12 +167,12 @@ cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr, struct cifsInodeInfo *cifs_i = CIFS_I(inode); struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb); - if (!(inode->i_state & I_NEW) && + if (!(inode_state_read_once(inode) & I_NEW) && unlikely(inode_wrong_type(inode, fattr->cf_mode))) { CIFS_I(inode)->time = 0; /* force reval */ return -ESTALE; } - if (inode->i_state & I_NEW) + if (inode_state_read_once(inode) & I_NEW) CIFS_I(inode)->netfs.zero_point = fattr->cf_eof; cifs_revalidate_cache(inode, fattr); @@ -194,7 +194,7 @@ cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr, inode->i_gid = fattr->cf_gid; /* if dynperm is set, don't clobber existing mode */ - if (inode->i_state & I_NEW || + if (inode_state_read(inode) & I_NEW || !(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DYNPERM)) inode->i_mode = fattr->cf_mode; @@ -236,7 +236,7 @@ cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr, if (fattr->cf_flags & CIFS_FATTR_JUNCTION) inode->i_flags |= S_AUTOMOUNT; - if (inode->i_state & I_NEW) { + if (inode_state_read_once(inode) & I_NEW) { cifs_set_netfs_context(inode); cifs_set_ops(inode); } @@ -1638,7 +1638,7 @@ cifs_iget(struct super_block *sb, struct cifs_fattr *fattr) cifs_fattr_to_inode(inode, fattr, false); if (sb->s_flags & SB_NOATIME) inode->i_flags |= S_NOATIME | S_NOCMTIME; - if (inode->i_state & I_NEW) { + if (inode_state_read_once(inode) & I_NEW) { inode->i_ino = hash; cifs_fscache_get_inode_cookie(inode); unlock_new_inode(inode); From ba69118c5239638a8cd8121ea08e11f45a84ec74 Mon Sep 17 00:00:00 2001 From: Mateusz Guzik Date: Thu, 9 Oct 2025 09:59:23 +0200 Subject: [PATCH 13/22] f2fs: use the new ->i_state accessors Change generated with coccinelle and fixed up by hand as appropriate. Signed-off-by: Mateusz Guzik Signed-off-by: Christian Brauner --- fs/f2fs/data.c | 2 +- fs/f2fs/inode.c | 2 +- fs/f2fs/namei.c | 4 ++-- fs/f2fs/super.c | 2 +- 4 files changed, 5 insertions(+), 5 deletions(-) diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index ef38e62cda8f..c5319864e4ff 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -4222,7 +4222,7 @@ static int f2fs_iomap_begin(struct inode *inode, loff_t offset, loff_t length, if (map.m_flags & F2FS_MAP_NEW) iomap->flags |= IOMAP_F_NEW; - if ((inode->i_state & I_DIRTY_DATASYNC) || + if ((inode_state_read_once(inode) & I_DIRTY_DATASYNC) || offset + length > i_size_read(inode)) iomap->flags |= IOMAP_F_DIRTY; diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c index 8c4eafe9ffac..f1cda1900658 100644 --- a/fs/f2fs/inode.c +++ b/fs/f2fs/inode.c @@ -569,7 +569,7 @@ struct inode *f2fs_iget(struct super_block *sb, unsigned long ino) if (!inode) return ERR_PTR(-ENOMEM); - if (!(inode->i_state & I_NEW)) { + if (!(inode_state_read_once(inode) & I_NEW)) { if (is_meta_ino(sbi, ino)) { f2fs_err(sbi, "inaccessible inode: %lu, run fsck to repair", ino); set_sbi_flag(sbi, SBI_NEED_FSCK); diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c index b882771e4699..af40282a6948 100644 --- a/fs/f2fs/namei.c +++ b/fs/f2fs/namei.c @@ -844,7 +844,7 @@ static int __f2fs_tmpfile(struct mnt_idmap *idmap, struct inode *dir, f2fs_i_links_write(inode, false); spin_lock(&inode->i_lock); - inode->i_state |= I_LINKABLE; + inode_state_set(inode, I_LINKABLE); spin_unlock(&inode->i_lock); } else { if (file) @@ -1057,7 +1057,7 @@ static int f2fs_rename(struct mnt_idmap *idmap, struct inode *old_dir, goto put_out_dir; spin_lock(&whiteout->i_lock); - whiteout->i_state &= ~I_LINKABLE; + inode_state_clear(whiteout, I_LINKABLE); spin_unlock(&whiteout->i_lock); iput(whiteout); diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index fd8e7b0b2166..8806a1f221cf 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -1798,7 +1798,7 @@ static int f2fs_drop_inode(struct inode *inode) * - f2fs_gc -> iput -> evict * - inode_wait_for_writeback(inode) */ - if ((!inode_unhashed(inode) && inode->i_state & I_SYNC)) { + if ((!inode_unhashed(inode) && inode_state_read(inode) & I_SYNC)) { if (!inode->i_nlink && !is_bad_inode(inode)) { /* to avoid evict_inode call simultaneously */ __iget(inode); From 40a4c512ad25640cb5b430c4788d747afcf07b63 Mon Sep 17 00:00:00 2001 From: Mateusz Guzik Date: Thu, 9 Oct 2025 09:59:24 +0200 Subject: [PATCH 14/22] gfs2: use the new ->i_state accessors Change generated with coccinelle and fixed up by hand as appropriate. Signed-off-by: Mateusz Guzik Signed-off-by: Christian Brauner --- fs/gfs2/file.c | 2 +- fs/gfs2/glops.c | 2 +- fs/gfs2/inode.c | 4 ++-- fs/gfs2/ops_fstype.c | 2 +- 4 files changed, 5 insertions(+), 5 deletions(-) diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c index bc67fa058c84..ee92f5910ae1 100644 --- a/fs/gfs2/file.c +++ b/fs/gfs2/file.c @@ -744,7 +744,7 @@ static int gfs2_fsync(struct file *file, loff_t start, loff_t end, { struct address_space *mapping = file->f_mapping; struct inode *inode = mapping->host; - int sync_state = inode->i_state & I_DIRTY; + int sync_state = inode_state_read_once(inode) & I_DIRTY; struct gfs2_inode *ip = GFS2_I(inode); int ret = 0, ret1 = 0; diff --git a/fs/gfs2/glops.c b/fs/gfs2/glops.c index 0c0a80b3baca..c94e42b0c94d 100644 --- a/fs/gfs2/glops.c +++ b/fs/gfs2/glops.c @@ -394,7 +394,7 @@ static int gfs2_dinode_in(struct gfs2_inode *ip, const void *buf) u16 height, depth; umode_t mode = be32_to_cpu(str->di_mode); struct inode *inode = &ip->i_inode; - bool is_new = inode->i_state & I_NEW; + bool is_new = inode_state_read_once(inode) & I_NEW; if (unlikely(ip->i_no_addr != be64_to_cpu(str->di_num.no_addr))) { gfs2_consist_inode(ip); diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c index 8a7ed80d9f2d..890c87e3e365 100644 --- a/fs/gfs2/inode.c +++ b/fs/gfs2/inode.c @@ -127,7 +127,7 @@ struct inode *gfs2_inode_lookup(struct super_block *sb, unsigned int type, ip = GFS2_I(inode); - if (inode->i_state & I_NEW) { + if (inode_state_read_once(inode) & I_NEW) { struct gfs2_sbd *sdp = GFS2_SB(inode); struct gfs2_glock *io_gl; int extra_flags = 0; @@ -924,7 +924,7 @@ static int gfs2_create_inode(struct inode *dir, struct dentry *dentry, gfs2_dir_no_add(&da); gfs2_glock_dq_uninit(&d_gh); if (!IS_ERR_OR_NULL(inode)) { - if (inode->i_state & I_NEW) + if (inode_state_read_once(inode) & I_NEW) iget_failed(inode); else iput(inode); diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c index aa15183f9a16..889682f051ea 100644 --- a/fs/gfs2/ops_fstype.c +++ b/fs/gfs2/ops_fstype.c @@ -1751,7 +1751,7 @@ static void gfs2_evict_inodes(struct super_block *sb) spin_lock(&sb->s_inode_list_lock); list_for_each_entry(inode, &sb->s_inodes, i_sb_list) { spin_lock(&inode->i_lock); - if ((inode->i_state & (I_FREEING|I_WILL_FREE|I_NEW)) && + if ((inode_state_read(inode) & (I_FREEING | I_WILL_FREE | I_NEW)) && !need_resched()) { spin_unlock(&inode->i_lock); continue; From ff175a4fc2e8a8fd376194adbbadec11426144dd Mon Sep 17 00:00:00 2001 From: Mateusz Guzik Date: Thu, 9 Oct 2025 09:59:25 +0200 Subject: [PATCH 15/22] overlayfs: use the new ->i_state accessors Change generated with coccinelle and fixed up by hand as appropriate. Signed-off-by: Mateusz Guzik Signed-off-by: Christian Brauner --- fs/overlayfs/dir.c | 2 +- fs/overlayfs/inode.c | 6 +++--- fs/overlayfs/util.c | 10 +++++----- 3 files changed, 9 insertions(+), 9 deletions(-) diff --git a/fs/overlayfs/dir.c b/fs/overlayfs/dir.c index a5e9ddf3023b..83b955a1d55c 100644 --- a/fs/overlayfs/dir.c +++ b/fs/overlayfs/dir.c @@ -686,7 +686,7 @@ static int ovl_create_object(struct dentry *dentry, int mode, dev_t rdev, goto out_drop_write; spin_lock(&inode->i_lock); - inode->i_state |= I_CREATING; + inode_state_set(inode, I_CREATING); spin_unlock(&inode->i_lock); inode_init_owner(&nop_mnt_idmap, inode, dentry->d_parent->d_inode, mode); diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c index aaa4cf579561..b7938dd43b95 100644 --- a/fs/overlayfs/inode.c +++ b/fs/overlayfs/inode.c @@ -1149,7 +1149,7 @@ struct inode *ovl_get_trap_inode(struct super_block *sb, struct dentry *dir) if (!trap) return ERR_PTR(-ENOMEM); - if (!(trap->i_state & I_NEW)) { + if (!(inode_state_read_once(trap) & I_NEW)) { /* Conflicting layer roots? */ iput(trap); return ERR_PTR(-ELOOP); @@ -1240,7 +1240,7 @@ struct inode *ovl_get_inode(struct super_block *sb, inode = ovl_iget5(sb, oip->newinode, key); if (!inode) goto out_err; - if (!(inode->i_state & I_NEW)) { + if (!(inode_state_read_once(inode) & I_NEW)) { /* * Verify that the underlying files stored in the inode * match those in the dentry. @@ -1300,7 +1300,7 @@ struct inode *ovl_get_inode(struct super_block *sb, if (upperdentry) ovl_check_protattr(inode, upperdentry); - if (inode->i_state & I_NEW) + if (inode_state_read_once(inode) & I_NEW) unlock_new_inode(inode); out: return inode; diff --git a/fs/overlayfs/util.c b/fs/overlayfs/util.c index f76672f2e686..2da1c035f716 100644 --- a/fs/overlayfs/util.c +++ b/fs/overlayfs/util.c @@ -1019,8 +1019,8 @@ bool ovl_inuse_trylock(struct dentry *dentry) bool locked = false; spin_lock(&inode->i_lock); - if (!(inode->i_state & I_OVL_INUSE)) { - inode->i_state |= I_OVL_INUSE; + if (!(inode_state_read(inode) & I_OVL_INUSE)) { + inode_state_set(inode, I_OVL_INUSE); locked = true; } spin_unlock(&inode->i_lock); @@ -1034,8 +1034,8 @@ void ovl_inuse_unlock(struct dentry *dentry) struct inode *inode = d_inode(dentry); spin_lock(&inode->i_lock); - WARN_ON(!(inode->i_state & I_OVL_INUSE)); - inode->i_state &= ~I_OVL_INUSE; + WARN_ON(!(inode_state_read(inode) & I_OVL_INUSE)); + inode_state_clear(inode, I_OVL_INUSE); spin_unlock(&inode->i_lock); } } @@ -1046,7 +1046,7 @@ bool ovl_is_inuse(struct dentry *dentry) bool inuse; spin_lock(&inode->i_lock); - inuse = (inode->i_state & I_OVL_INUSE); + inuse = (inode_state_read(inode) & I_OVL_INUSE); spin_unlock(&inode->i_lock); return inuse; From a18d43041b213d33b56672a7951c73ac9d4876d2 Mon Sep 17 00:00:00 2001 From: Mateusz Guzik Date: Thu, 9 Oct 2025 09:59:26 +0200 Subject: [PATCH 16/22] nilfs2: use the new ->i_state accessors Change generated with coccinelle and fixed up by hand as appropriate. Signed-off-by: Mateusz Guzik Signed-off-by: Christian Brauner --- fs/nilfs2/cpfile.c | 2 +- fs/nilfs2/dat.c | 2 +- fs/nilfs2/ifile.c | 2 +- fs/nilfs2/inode.c | 10 +++++----- fs/nilfs2/sufile.c | 2 +- 5 files changed, 9 insertions(+), 9 deletions(-) diff --git a/fs/nilfs2/cpfile.c b/fs/nilfs2/cpfile.c index bcc7d76269ac..4bbdc832d7f2 100644 --- a/fs/nilfs2/cpfile.c +++ b/fs/nilfs2/cpfile.c @@ -1148,7 +1148,7 @@ int nilfs_cpfile_read(struct super_block *sb, size_t cpsize, cpfile = nilfs_iget_locked(sb, NULL, NILFS_CPFILE_INO); if (unlikely(!cpfile)) return -ENOMEM; - if (!(cpfile->i_state & I_NEW)) + if (!(inode_state_read_once(cpfile) & I_NEW)) goto out; err = nilfs_mdt_init(cpfile, NILFS_MDT_GFP, 0); diff --git a/fs/nilfs2/dat.c b/fs/nilfs2/dat.c index c664daba56ae..674380837ab9 100644 --- a/fs/nilfs2/dat.c +++ b/fs/nilfs2/dat.c @@ -506,7 +506,7 @@ int nilfs_dat_read(struct super_block *sb, size_t entry_size, dat = nilfs_iget_locked(sb, NULL, NILFS_DAT_INO); if (unlikely(!dat)) return -ENOMEM; - if (!(dat->i_state & I_NEW)) + if (!(inode_state_read_once(dat) & I_NEW)) goto out; err = nilfs_mdt_init(dat, NILFS_MDT_GFP, sizeof(*di)); diff --git a/fs/nilfs2/ifile.c b/fs/nilfs2/ifile.c index c4cd4a4dedd0..99eb8a59009e 100644 --- a/fs/nilfs2/ifile.c +++ b/fs/nilfs2/ifile.c @@ -188,7 +188,7 @@ int nilfs_ifile_read(struct super_block *sb, struct nilfs_root *root, ifile = nilfs_iget_locked(sb, root, NILFS_IFILE_INO); if (unlikely(!ifile)) return -ENOMEM; - if (!(ifile->i_state & I_NEW)) + if (!(inode_state_read_once(ifile) & I_NEW)) goto out; err = nilfs_mdt_init(ifile, NILFS_MDT_GFP, diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c index 87ddde159f0c..51bde45d5865 100644 --- a/fs/nilfs2/inode.c +++ b/fs/nilfs2/inode.c @@ -365,7 +365,7 @@ struct inode *nilfs_new_inode(struct inode *dir, umode_t mode) failed_after_creation: clear_nlink(inode); - if (inode->i_state & I_NEW) + if (inode_state_read_once(inode) & I_NEW) unlock_new_inode(inode); iput(inode); /* * raw_inode will be deleted through @@ -562,7 +562,7 @@ struct inode *nilfs_iget(struct super_block *sb, struct nilfs_root *root, if (unlikely(!inode)) return ERR_PTR(-ENOMEM); - if (!(inode->i_state & I_NEW)) { + if (!(inode_state_read_once(inode) & I_NEW)) { if (!inode->i_nlink) { iput(inode); return ERR_PTR(-ESTALE); @@ -591,7 +591,7 @@ struct inode *nilfs_iget_for_gc(struct super_block *sb, unsigned long ino, inode = iget5_locked(sb, ino, nilfs_iget_test, nilfs_iget_set, &args); if (unlikely(!inode)) return ERR_PTR(-ENOMEM); - if (!(inode->i_state & I_NEW)) + if (!(inode_state_read_once(inode) & I_NEW)) return inode; err = nilfs_init_gcinode(inode); @@ -631,7 +631,7 @@ int nilfs_attach_btree_node_cache(struct inode *inode) nilfs_iget_set, &args); if (unlikely(!btnc_inode)) return -ENOMEM; - if (btnc_inode->i_state & I_NEW) { + if (inode_state_read_once(btnc_inode) & I_NEW) { nilfs_init_btnc_inode(btnc_inode); unlock_new_inode(btnc_inode); } @@ -686,7 +686,7 @@ struct inode *nilfs_iget_for_shadow(struct inode *inode) nilfs_iget_set, &args); if (unlikely(!s_inode)) return ERR_PTR(-ENOMEM); - if (!(s_inode->i_state & I_NEW)) + if (!(inode_state_read_once(s_inode) & I_NEW)) return inode; NILFS_I(s_inode)->i_flags = 0; diff --git a/fs/nilfs2/sufile.c b/fs/nilfs2/sufile.c index 330f269abedf..83f93337c01b 100644 --- a/fs/nilfs2/sufile.c +++ b/fs/nilfs2/sufile.c @@ -1226,7 +1226,7 @@ int nilfs_sufile_read(struct super_block *sb, size_t susize, sufile = nilfs_iget_locked(sb, NULL, NILFS_SUFILE_INO); if (unlikely(!sufile)) return -ENOMEM; - if (!(sufile->i_state & I_NEW)) + if (!(inode_state_read_once(sufile) & I_NEW)) goto out; err = nilfs_mdt_init(sufile, NILFS_MDT_GFP, sizeof(*sui)); From 18c61399f6b9bae796e0a4a88e96967639fa8218 Mon Sep 17 00:00:00 2001 From: Mateusz Guzik Date: Thu, 9 Oct 2025 09:59:27 +0200 Subject: [PATCH 17/22] xfs: use the new ->i_state accessors Change generated with coccinelle and fixed up by hand as appropriate. Signed-off-by: Mateusz Guzik Signed-off-by: Christian Brauner --- fs/xfs/scrub/common.c | 2 +- fs/xfs/scrub/inode_repair.c | 2 +- fs/xfs/scrub/parent.c | 2 +- fs/xfs/xfs_bmap_util.c | 2 +- fs/xfs/xfs_health.c | 4 ++-- fs/xfs/xfs_icache.c | 6 +++--- fs/xfs/xfs_inode.c | 6 +++--- fs/xfs/xfs_inode_item.c | 4 ++-- fs/xfs/xfs_iops.c | 2 +- fs/xfs/xfs_reflink.h | 2 +- 10 files changed, 16 insertions(+), 16 deletions(-) diff --git a/fs/xfs/scrub/common.c b/fs/xfs/scrub/common.c index 2ef7742be7d3..7bfa37c99480 100644 --- a/fs/xfs/scrub/common.c +++ b/fs/xfs/scrub/common.c @@ -1249,7 +1249,7 @@ xchk_irele( * hits do not clear DONTCACHE, so we must do it here. */ spin_lock(&VFS_I(ip)->i_lock); - VFS_I(ip)->i_state &= ~I_DONTCACHE; + inode_state_clear(VFS_I(ip), I_DONTCACHE); spin_unlock(&VFS_I(ip)->i_lock); } diff --git a/fs/xfs/scrub/inode_repair.c b/fs/xfs/scrub/inode_repair.c index a90a011c7e5f..4f7040c9ddf0 100644 --- a/fs/xfs/scrub/inode_repair.c +++ b/fs/xfs/scrub/inode_repair.c @@ -1933,7 +1933,7 @@ xrep_inode_pptr( * Unlinked inodes that cannot be added to the directory tree will not * have a parent pointer. */ - if (inode->i_nlink == 0 && !(inode->i_state & I_LINKABLE)) + if (inode->i_nlink == 0 && !(inode_state_read_once(inode) & I_LINKABLE)) return 0; /* Children of the superblock do not have parent pointers. */ diff --git a/fs/xfs/scrub/parent.c b/fs/xfs/scrub/parent.c index 3b692c4acc1e..11d5de10fd56 100644 --- a/fs/xfs/scrub/parent.c +++ b/fs/xfs/scrub/parent.c @@ -915,7 +915,7 @@ xchk_pptr_looks_zapped( * Temporary files that cannot be linked into the directory tree do not * have attr forks because they cannot ever have parents. */ - if (inode->i_nlink == 0 && !(inode->i_state & I_LINKABLE)) + if (inode->i_nlink == 0 && !(inode_state_read_once(inode) & I_LINKABLE)) return false; /* diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c index 06ca11731e43..2208a720ec3f 100644 --- a/fs/xfs/xfs_bmap_util.c +++ b/fs/xfs/xfs_bmap_util.c @@ -514,7 +514,7 @@ xfs_can_free_eofblocks( * Caller must either hold the exclusive io lock; or be inactivating * the inode, which guarantees there are no other users of the inode. */ - if (!(VFS_I(ip)->i_state & I_FREEING)) + if (!(inode_state_read_once(VFS_I(ip)) & I_FREEING)) xfs_assert_ilocked(ip, XFS_IOLOCK_EXCL); /* prealloc/delalloc exists only on regular files */ diff --git a/fs/xfs/xfs_health.c b/fs/xfs/xfs_health.c index 7c541fb373d5..3c1557fb1cf0 100644 --- a/fs/xfs/xfs_health.c +++ b/fs/xfs/xfs_health.c @@ -285,7 +285,7 @@ xfs_inode_mark_sick( * is not the case here. */ spin_lock(&VFS_I(ip)->i_lock); - VFS_I(ip)->i_state &= ~I_DONTCACHE; + inode_state_clear(VFS_I(ip), I_DONTCACHE); spin_unlock(&VFS_I(ip)->i_lock); } @@ -309,7 +309,7 @@ xfs_inode_mark_corrupt( * is not the case here. */ spin_lock(&VFS_I(ip)->i_lock); - VFS_I(ip)->i_state &= ~I_DONTCACHE; + inode_state_clear(VFS_I(ip), I_DONTCACHE); spin_unlock(&VFS_I(ip)->i_lock); } diff --git a/fs/xfs/xfs_icache.c b/fs/xfs/xfs_icache.c index e44040206851..f3fc4d21bfe1 100644 --- a/fs/xfs/xfs_icache.c +++ b/fs/xfs/xfs_icache.c @@ -334,7 +334,7 @@ xfs_reinit_inode( dev_t dev = inode->i_rdev; kuid_t uid = inode->i_uid; kgid_t gid = inode->i_gid; - unsigned long state = inode->i_state; + unsigned long state = inode_state_read_once(inode); error = inode_init_always(mp->m_super, inode); @@ -345,7 +345,7 @@ xfs_reinit_inode( inode->i_rdev = dev; inode->i_uid = uid; inode->i_gid = gid; - inode->i_state = state; + inode_state_assign_raw(inode, state); mapping_set_folio_min_order(inode->i_mapping, M_IGEO(mp)->min_folio_order); return error; @@ -411,7 +411,7 @@ xfs_iget_recycle( ip->i_flags |= XFS_INEW; xfs_perag_clear_inode_tag(pag, XFS_INO_TO_AGINO(mp, ip->i_ino), XFS_ICI_RECLAIM_TAG); - inode->i_state = I_NEW; + inode_state_assign_raw(inode, I_NEW); spin_unlock(&ip->i_flags_lock); spin_unlock(&pag->pag_ici_lock); diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index 36b39539e561..f1f88e48fe22 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -1580,7 +1580,7 @@ xfs_iunlink_reload_next( next_ip->i_prev_unlinked = prev_agino; trace_xfs_iunlink_reload_next(next_ip); rele: - ASSERT(!(VFS_I(next_ip)->i_state & I_DONTCACHE)); + ASSERT(!(inode_state_read_once(VFS_I(next_ip)) & I_DONTCACHE)); if (xfs_is_quotacheck_running(mp) && next_ip) xfs_iflags_set(next_ip, XFS_IQUOTAUNCHECKED); xfs_irele(next_ip); @@ -2111,7 +2111,7 @@ xfs_rename_alloc_whiteout( */ xfs_setup_iops(tmpfile); xfs_finish_inode_setup(tmpfile); - VFS_I(tmpfile)->i_state |= I_LINKABLE; + inode_state_set_raw(VFS_I(tmpfile), I_LINKABLE); *wip = tmpfile; return 0; @@ -2330,7 +2330,7 @@ xfs_rename( * flag from the inode so it doesn't accidentally get misused in * future. */ - VFS_I(du_wip.ip)->i_state &= ~I_LINKABLE; + inode_state_clear_raw(VFS_I(du_wip.ip), I_LINKABLE); } out_commit: diff --git a/fs/xfs/xfs_inode_item.c b/fs/xfs/xfs_inode_item.c index 1bd411a1114c..2eb0c6011a2e 100644 --- a/fs/xfs/xfs_inode_item.c +++ b/fs/xfs/xfs_inode_item.c @@ -113,9 +113,9 @@ xfs_inode_item_precommit( * to log the timestamps, or will clear already cleared fields in the * worst case. */ - if (inode->i_state & I_DIRTY_TIME) { + if (inode_state_read_once(inode) & I_DIRTY_TIME) { spin_lock(&inode->i_lock); - inode->i_state &= ~I_DIRTY_TIME; + inode_state_clear(inode, I_DIRTY_TIME); spin_unlock(&inode->i_lock); } diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c index caff0125faea..ad94fbf55014 100644 --- a/fs/xfs/xfs_iops.c +++ b/fs/xfs/xfs_iops.c @@ -1420,7 +1420,7 @@ xfs_setup_inode( bool is_meta = xfs_is_internal_inode(ip); inode->i_ino = ip->i_ino; - inode->i_state |= I_NEW; + inode_state_set_raw(inode, I_NEW); inode_sb_list_add(inode); /* make the inode look hashed for the writeback code */ diff --git a/fs/xfs/xfs_reflink.h b/fs/xfs/xfs_reflink.h index 36cda724da89..9d1ed9bb0bee 100644 --- a/fs/xfs/xfs_reflink.h +++ b/fs/xfs/xfs_reflink.h @@ -17,7 +17,7 @@ xfs_can_free_cowblocks(struct xfs_inode *ip) { struct inode *inode = VFS_I(ip); - if ((inode->i_state & I_DIRTY_PAGES) || + if ((inode_state_read_once(inode) & I_DIRTY_PAGES) || mapping_tagged(inode->i_mapping, PAGECACHE_TAG_DIRTY) || mapping_tagged(inode->i_mapping, PAGECACHE_TAG_WRITEBACK) || atomic_read(&inode->i_dio_count)) From 2ed81b4bef9b74ae0f095ad4667dbe2ae0b86a91 Mon Sep 17 00:00:00 2001 From: Mateusz Guzik Date: Thu, 9 Oct 2025 09:59:28 +0200 Subject: [PATCH 18/22] fs: make plain ->i_state access fail to compile ... to make sure all accesses are properly validated. Merely renaming the var to __i_state still lets the compiler make the following suggestion: error: 'struct inode' has no member named 'i_state'; did you mean '__i_state'? Unfortunately some people will add the __'s and call it a day. In order to make it harder to mess up in this way, hide it behind a struct. The resulting error message should be convincing in terms of checking what to do: error: invalid operands to binary & (have 'struct inode_state_flags' and 'int') Of course people determined to do a plain access can still do it, but nothing can be done for that case. Signed-off-by: Mateusz Guzik Signed-off-by: Christian Brauner --- include/linux/fs.h | 21 ++++++++++++++------- 1 file changed, 14 insertions(+), 7 deletions(-) diff --git a/include/linux/fs.h b/include/linux/fs.h index 77b6486dcae7..21c73df3ce75 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -785,6 +785,13 @@ enum inode_state_flags_enum { #define I_DIRTY (I_DIRTY_INODE | I_DIRTY_PAGES) #define I_DIRTY_ALL (I_DIRTY | I_DIRTY_TIME) +/* + * Use inode_state_read() & friends to access. + */ +struct inode_state_flags { + enum inode_state_flags_enum __state; +}; + /* * Keep mostly read-only and often accessed (especially for * the RCU path lookup and 'stat' data) fields at the beginning @@ -843,7 +850,7 @@ struct inode { #endif /* Misc */ - enum inode_state_flags_enum i_state; + struct inode_state_flags i_state; /* 32-bit hole */ struct rw_semaphore i_rwsem; @@ -909,19 +916,19 @@ struct inode { */ static inline enum inode_state_flags_enum inode_state_read_once(struct inode *inode) { - return READ_ONCE(inode->i_state); + return READ_ONCE(inode->i_state.__state); } static inline enum inode_state_flags_enum inode_state_read(struct inode *inode) { lockdep_assert_held(&inode->i_lock); - return inode->i_state; + return inode->i_state.__state; } static inline void inode_state_set_raw(struct inode *inode, enum inode_state_flags_enum flags) { - WRITE_ONCE(inode->i_state, inode->i_state | flags); + WRITE_ONCE(inode->i_state.__state, inode->i_state.__state | flags); } static inline void inode_state_set(struct inode *inode, @@ -934,7 +941,7 @@ static inline void inode_state_set(struct inode *inode, static inline void inode_state_clear_raw(struct inode *inode, enum inode_state_flags_enum flags) { - WRITE_ONCE(inode->i_state, inode->i_state & ~flags); + WRITE_ONCE(inode->i_state.__state, inode->i_state.__state & ~flags); } static inline void inode_state_clear(struct inode *inode, @@ -947,7 +954,7 @@ static inline void inode_state_clear(struct inode *inode, static inline void inode_state_assign_raw(struct inode *inode, enum inode_state_flags_enum flags) { - WRITE_ONCE(inode->i_state, flags); + WRITE_ONCE(inode->i_state.__state, flags); } static inline void inode_state_assign(struct inode *inode, @@ -962,7 +969,7 @@ static inline void inode_state_replace_raw(struct inode *inode, enum inode_state_flags_enum setflags) { enum inode_state_flags_enum flags; - flags = inode->i_state; + flags = inode->i_state.__state; flags &= ~clearflags; flags |= setflags; inode_state_assign_raw(inode, flags); From a27628f4363435beac84b55c749c41a005054d30 Mon Sep 17 00:00:00 2001 From: Mateusz Guzik Date: Sat, 11 Oct 2025 00:17:36 +0200 Subject: [PATCH 19/22] fs: rework I_NEW handling to operate without fences In the inode hash code grab the state while ->i_lock is held. If found to be set, synchronize the sleep once more with the lock held. In the real world the flag is not set most of the time. Apart from being simpler to reason about, it comes with a minor speed up as now clearing the flag does not require the smp_mb() fence. While here rename wait_on_inode() to wait_on_new_inode() to line it up with __wait_on_freeing_inode(). Christian Brauner says: As per the discussion in [1] I folded in the diff sent in [2]. Link: https://lore.kernel.org/69238e4d.a70a0220.d98e3.006e.GAE@google.com [1] Link: https://lore.kernel.org/c2kpawomkbvtahjm7y5mposbhckb7wxthi3iqy5yr22ggpucrm@ufvxwy233qxo [2] Signed-off-by: Mateusz Guzik Link: https://patch.msgid.link/20251010221737.1403539-1-mjguzik@gmail.com Signed-off-by: Christian Brauner --- fs/afs/dir.c | 4 +- fs/dcache.c | 10 ----- fs/gfs2/glock.c | 2 +- fs/inode.c | 98 +++++++++++++++++++++++++++++----------------- include/linux/fs.h | 12 +----- 5 files changed, 66 insertions(+), 60 deletions(-) diff --git a/fs/afs/dir.c b/fs/afs/dir.c index 89d36e3e5c79..f4e9e12373ac 100644 --- a/fs/afs/dir.c +++ b/fs/afs/dir.c @@ -779,7 +779,7 @@ static struct inode *afs_do_lookup(struct inode *dir, struct dentry *dentry) struct afs_vnode *dvnode = AFS_FS_I(dir), *vnode; struct inode *inode = NULL, *ti; afs_dataversion_t data_version = READ_ONCE(dvnode->status.data_version); - bool supports_ibulk; + bool supports_ibulk, isnew; long ret; int i; @@ -850,7 +850,7 @@ static struct inode *afs_do_lookup(struct inode *dir, struct dentry *dentry) * callback counters. */ ti = ilookup5_nowait(dir->i_sb, vp->fid.vnode, - afs_ilookup5_test_by_fid, &vp->fid); + afs_ilookup5_test_by_fid, &vp->fid, &isnew); if (!IS_ERR_OR_NULL(ti)) { vnode = AFS_FS_I(ti); vp->dv_before = vnode->status.data_version; diff --git a/fs/dcache.c b/fs/dcache.c index 78ffa7b7e824..25131f105a60 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -1981,17 +1981,7 @@ void d_instantiate_new(struct dentry *entry, struct inode *inode) spin_lock(&inode->i_lock); __d_instantiate(entry, inode); WARN_ON(!(inode_state_read(inode) & I_NEW)); - /* - * Pairs with smp_rmb in wait_on_inode(). - */ - smp_wmb(); inode_state_clear(inode, I_NEW | I_CREATING); - /* - * Pairs with the barrier in prepare_to_wait_event() to make sure - * ___wait_var_event() either sees the bit cleared or - * waitqueue_active() check in wake_up_var() sees the waiter. - */ - smp_mb(); inode_wake_up_bit(inode, __I_NEW); spin_unlock(&inode->i_lock); } diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c index b677c0e6b9ab..c9712235e7a0 100644 --- a/fs/gfs2/glock.c +++ b/fs/gfs2/glock.c @@ -957,7 +957,7 @@ static struct gfs2_inode *gfs2_grab_existing_inode(struct gfs2_glock *gl) ip = NULL; spin_unlock(&gl->gl_lockref.lock); if (ip) { - wait_on_inode(&ip->i_inode); + wait_on_new_inode(&ip->i_inode); if (is_bad_inode(&ip->i_inode)) { iput(&ip->i_inode); ip = NULL; diff --git a/fs/inode.c b/fs/inode.c index 3153d725859c..80298f048117 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -558,6 +558,32 @@ struct wait_queue_head *inode_bit_waitqueue(struct wait_bit_queue_entry *wqe, } EXPORT_SYMBOL(inode_bit_waitqueue); +void wait_on_new_inode(struct inode *inode) +{ + struct wait_bit_queue_entry wqe; + struct wait_queue_head *wq_head; + + spin_lock(&inode->i_lock); + if (!(inode_state_read(inode) & I_NEW)) { + spin_unlock(&inode->i_lock); + return; + } + + wq_head = inode_bit_waitqueue(&wqe, inode, __I_NEW); + for (;;) { + prepare_to_wait_event(wq_head, &wqe.wq_entry, TASK_UNINTERRUPTIBLE); + if (!(inode_state_read(inode) & I_NEW)) + break; + spin_unlock(&inode->i_lock); + schedule(); + spin_lock(&inode->i_lock); + } + finish_wait(wq_head, &wqe.wq_entry); + WARN_ON(inode_state_read(inode) & I_NEW); + spin_unlock(&inode->i_lock); +} +EXPORT_SYMBOL(wait_on_new_inode); + /* * Add inode to LRU if needed (inode is unused and clean). * @@ -1008,7 +1034,8 @@ static void __wait_on_freeing_inode(struct inode *inode, bool is_inode_hash_lock static struct inode *find_inode(struct super_block *sb, struct hlist_head *head, int (*test)(struct inode *, void *), - void *data, bool is_inode_hash_locked) + void *data, bool is_inode_hash_locked, + bool *isnew) { struct inode *inode = NULL; @@ -1035,6 +1062,7 @@ static struct inode *find_inode(struct super_block *sb, return ERR_PTR(-ESTALE); } __iget(inode); + *isnew = !!(inode_state_read(inode) & I_NEW); spin_unlock(&inode->i_lock); rcu_read_unlock(); return inode; @@ -1049,7 +1077,7 @@ static struct inode *find_inode(struct super_block *sb, */ static struct inode *find_inode_fast(struct super_block *sb, struct hlist_head *head, unsigned long ino, - bool is_inode_hash_locked) + bool is_inode_hash_locked, bool *isnew) { struct inode *inode = NULL; @@ -1076,6 +1104,7 @@ static struct inode *find_inode_fast(struct super_block *sb, return ERR_PTR(-ESTALE); } __iget(inode); + *isnew = !!(inode_state_read(inode) & I_NEW); spin_unlock(&inode->i_lock); rcu_read_unlock(); return inode; @@ -1181,17 +1210,7 @@ void unlock_new_inode(struct inode *inode) lockdep_annotate_inode_mutex_key(inode); spin_lock(&inode->i_lock); WARN_ON(!(inode_state_read(inode) & I_NEW)); - /* - * Pairs with smp_rmb in wait_on_inode(). - */ - smp_wmb(); inode_state_clear(inode, I_NEW | I_CREATING); - /* - * Pairs with the barrier in prepare_to_wait_event() to make sure - * ___wait_var_event() either sees the bit cleared or - * waitqueue_active() check in wake_up_var() sees the waiter. - */ - smp_mb(); inode_wake_up_bit(inode, __I_NEW); spin_unlock(&inode->i_lock); } @@ -1202,17 +1221,7 @@ void discard_new_inode(struct inode *inode) lockdep_annotate_inode_mutex_key(inode); spin_lock(&inode->i_lock); WARN_ON(!(inode_state_read(inode) & I_NEW)); - /* - * Pairs with smp_rmb in wait_on_inode(). - */ - smp_wmb(); inode_state_clear(inode, I_NEW); - /* - * Pairs with the barrier in prepare_to_wait_event() to make sure - * ___wait_var_event() either sees the bit cleared or - * waitqueue_active() check in wake_up_var() sees the waiter. - */ - smp_mb(); inode_wake_up_bit(inode, __I_NEW); spin_unlock(&inode->i_lock); iput(inode); @@ -1268,6 +1277,7 @@ EXPORT_SYMBOL(unlock_two_nondirectories); * @test: callback used for comparisons between inodes * @set: callback used to initialize a new struct inode * @data: opaque data pointer to pass to @test and @set + * @isnew: pointer to a bool which will indicate whether I_NEW is set * * Search for the inode specified by @hashval and @data in the inode cache, * and if present return it with an increased reference count. This is a @@ -1286,12 +1296,13 @@ struct inode *inode_insert5(struct inode *inode, unsigned long hashval, { struct hlist_head *head = inode_hashtable + hash(inode->i_sb, hashval); struct inode *old; + bool isnew; might_sleep(); again: spin_lock(&inode_hash_lock); - old = find_inode(inode->i_sb, head, test, data, true); + old = find_inode(inode->i_sb, head, test, data, true, &isnew); if (unlikely(old)) { /* * Uhhuh, somebody else created the same inode under us. @@ -1300,7 +1311,8 @@ struct inode *inode_insert5(struct inode *inode, unsigned long hashval, spin_unlock(&inode_hash_lock); if (IS_ERR(old)) return NULL; - wait_on_inode(old); + if (unlikely(isnew)) + wait_on_new_inode(old); if (unlikely(inode_unhashed(old))) { iput(old); goto again; @@ -1391,15 +1403,17 @@ struct inode *iget5_locked_rcu(struct super_block *sb, unsigned long hashval, { struct hlist_head *head = inode_hashtable + hash(sb, hashval); struct inode *inode, *new; + bool isnew; might_sleep(); again: - inode = find_inode(sb, head, test, data, false); + inode = find_inode(sb, head, test, data, false, &isnew); if (inode) { if (IS_ERR(inode)) return NULL; - wait_on_inode(inode); + if (unlikely(isnew)) + wait_on_new_inode(inode); if (unlikely(inode_unhashed(inode))) { iput(inode); goto again; @@ -1434,15 +1448,17 @@ struct inode *iget_locked(struct super_block *sb, unsigned long ino) { struct hlist_head *head = inode_hashtable + hash(sb, ino); struct inode *inode; + bool isnew; might_sleep(); again: - inode = find_inode_fast(sb, head, ino, false); + inode = find_inode_fast(sb, head, ino, false, &isnew); if (inode) { if (IS_ERR(inode)) return NULL; - wait_on_inode(inode); + if (unlikely(isnew)) + wait_on_new_inode(inode); if (unlikely(inode_unhashed(inode))) { iput(inode); goto again; @@ -1456,7 +1472,7 @@ struct inode *iget_locked(struct super_block *sb, unsigned long ino) spin_lock(&inode_hash_lock); /* We released the lock, so.. */ - old = find_inode_fast(sb, head, ino, true); + old = find_inode_fast(sb, head, ino, true, &isnew); if (!old) { inode->i_ino = ino; spin_lock(&inode->i_lock); @@ -1482,7 +1498,8 @@ struct inode *iget_locked(struct super_block *sb, unsigned long ino) if (IS_ERR(old)) return NULL; inode = old; - wait_on_inode(inode); + if (unlikely(isnew)) + wait_on_new_inode(inode); if (unlikely(inode_unhashed(inode))) { iput(inode); goto again; @@ -1586,13 +1603,13 @@ EXPORT_SYMBOL(igrab); * Note2: @test is called with the inode_hash_lock held, so can't sleep. */ struct inode *ilookup5_nowait(struct super_block *sb, unsigned long hashval, - int (*test)(struct inode *, void *), void *data) + int (*test)(struct inode *, void *), void *data, bool *isnew) { struct hlist_head *head = inode_hashtable + hash(sb, hashval); struct inode *inode; spin_lock(&inode_hash_lock); - inode = find_inode(sb, head, test, data, true); + inode = find_inode(sb, head, test, data, true, isnew); spin_unlock(&inode_hash_lock); return IS_ERR(inode) ? NULL : inode; @@ -1620,13 +1637,15 @@ struct inode *ilookup5(struct super_block *sb, unsigned long hashval, int (*test)(struct inode *, void *), void *data) { struct inode *inode; + bool isnew; might_sleep(); again: - inode = ilookup5_nowait(sb, hashval, test, data); + inode = ilookup5_nowait(sb, hashval, test, data, &isnew); if (inode) { - wait_on_inode(inode); + if (unlikely(isnew)) + wait_on_new_inode(inode); if (unlikely(inode_unhashed(inode))) { iput(inode); goto again; @@ -1648,16 +1667,18 @@ struct inode *ilookup(struct super_block *sb, unsigned long ino) { struct hlist_head *head = inode_hashtable + hash(sb, ino); struct inode *inode; + bool isnew; might_sleep(); again: - inode = find_inode_fast(sb, head, ino, false); + inode = find_inode_fast(sb, head, ino, false, &isnew); if (inode) { if (IS_ERR(inode)) return NULL; - wait_on_inode(inode); + if (unlikely(isnew)) + wait_on_new_inode(inode); if (unlikely(inode_unhashed(inode))) { iput(inode); goto again; @@ -1800,6 +1821,7 @@ int insert_inode_locked(struct inode *inode) struct super_block *sb = inode->i_sb; ino_t ino = inode->i_ino; struct hlist_head *head = inode_hashtable + hash(sb, ino); + bool isnew; might_sleep(); @@ -1832,9 +1854,11 @@ int insert_inode_locked(struct inode *inode) return -EBUSY; } __iget(old); + isnew = !!(inode_state_read(old) & I_NEW); spin_unlock(&old->i_lock); spin_unlock(&inode_hash_lock); - wait_on_inode(old); + if (isnew) + wait_on_new_inode(old); if (unlikely(!inode_unhashed(old))) { iput(old); return -EBUSY; diff --git a/include/linux/fs.h b/include/linux/fs.h index 21c73df3ce75..a813abdcf218 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1030,15 +1030,7 @@ static inline void inode_fake_hash(struct inode *inode) hlist_add_fake(&inode->i_hash); } -static inline void wait_on_inode(struct inode *inode) -{ - wait_var_event(inode_state_wait_address(inode, __I_NEW), - !(inode_state_read_once(inode) & I_NEW)); - /* - * Pairs with routines clearing I_NEW. - */ - smp_rmb(); -} +void wait_on_new_inode(struct inode *inode); /* * inode->i_rwsem nesting subclasses for the lock validator: @@ -3417,7 +3409,7 @@ extern void d_mark_dontcache(struct inode *inode); extern struct inode *ilookup5_nowait(struct super_block *sb, unsigned long hashval, int (*test)(struct inode *, void *), - void *data); + void *data, bool *isnew); extern struct inode *ilookup5(struct super_block *sb, unsigned long hashval, int (*test)(struct inode *, void *), void *data); extern struct inode *ilookup(struct super_block *sb, unsigned long ino); From 4c6b40877b4dc83f61a762a3a35a09dcf744b585 Mon Sep 17 00:00:00 2001 From: Mateusz Guzik Date: Wed, 29 Oct 2025 14:14:28 +0100 Subject: [PATCH 20/22] fs: cosmetic fixes to lru handling 1. inode_bit_waitqueue() was somehow placed between __inode_add_lru() and inode_add_lru(). move it up 2. assert ->i_lock is held in __inode_add_lru instead of just claiming it is needed 3. s/__inode_add_lru/__inode_lru_list_add/ for consistency with itself (inode_lru_list_del()) and similar routines for sb and io list management 4. push list presence check into inode_lru_list_del(), just like sb and io list Signed-off-by: Mateusz Guzik Link: https://patch.msgid.link/20251029131428.654761-2-mjguzik@gmail.com Reviewed-by: Jan Kara Signed-off-by: Christian Brauner --- fs/fs-writeback.c | 2 +- fs/inode.c | 50 ++++++++++++++++++++++++---------------------- include/linux/fs.h | 2 +- mm/filemap.c | 4 ++-- mm/truncate.c | 6 +++--- mm/vmscan.c | 2 +- mm/workingset.c | 2 +- 7 files changed, 35 insertions(+), 33 deletions(-) diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index f784d8b09b04..c00b72e2d339 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -1452,7 +1452,7 @@ static void inode_sync_complete(struct inode *inode) inode_state_clear(inode, I_SYNC); /* If inode is clean an unused, put it into LRU now... */ - inode_add_lru(inode); + inode_lru_list_add(inode); /* Called with inode->i_lock which ensures memory ordering. */ inode_wake_up_bit(inode, __I_SYNC); } diff --git a/fs/inode.c b/fs/inode.c index 80298f048117..7229a56732c6 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -530,23 +530,6 @@ void ihold(struct inode *inode) } EXPORT_SYMBOL(ihold); -static void __inode_add_lru(struct inode *inode, bool rotate) -{ - if (inode_state_read(inode) & (I_DIRTY_ALL | I_SYNC | I_FREEING | I_WILL_FREE)) - return; - if (icount_read(inode)) - return; - if (!(inode->i_sb->s_flags & SB_ACTIVE)) - return; - if (!mapping_shrinkable(&inode->i_data)) - return; - - if (list_lru_add_obj(&inode->i_sb->s_inode_lru, &inode->i_lru)) - this_cpu_inc(nr_unused); - else if (rotate) - inode_state_set(inode, I_REFERENCED); -} - struct wait_queue_head *inode_bit_waitqueue(struct wait_bit_queue_entry *wqe, struct inode *inode, u32 bit) { @@ -584,18 +567,38 @@ void wait_on_new_inode(struct inode *inode) } EXPORT_SYMBOL(wait_on_new_inode); +static void __inode_lru_list_add(struct inode *inode, bool rotate) +{ + lockdep_assert_held(&inode->i_lock); + + if (inode_state_read(inode) & (I_DIRTY_ALL | I_SYNC | I_FREEING | I_WILL_FREE)) + return; + if (icount_read(inode)) + return; + if (!(inode->i_sb->s_flags & SB_ACTIVE)) + return; + if (!mapping_shrinkable(&inode->i_data)) + return; + + if (list_lru_add_obj(&inode->i_sb->s_inode_lru, &inode->i_lru)) + this_cpu_inc(nr_unused); + else if (rotate) + inode_state_set(inode, I_REFERENCED); +} + /* * Add inode to LRU if needed (inode is unused and clean). - * - * Needs inode->i_lock held. */ -void inode_add_lru(struct inode *inode) +void inode_lru_list_add(struct inode *inode) { - __inode_add_lru(inode, false); + __inode_lru_list_add(inode, false); } static void inode_lru_list_del(struct inode *inode) { + if (list_empty(&inode->i_lru)) + return; + if (list_lru_del_obj(&inode->i_sb->s_inode_lru, &inode->i_lru)) this_cpu_dec(nr_unused); } @@ -1920,7 +1923,7 @@ static void iput_final(struct inode *inode) if (!drop && !(inode_state_read(inode) & I_DONTCACHE) && (sb->s_flags & SB_ACTIVE)) { - __inode_add_lru(inode, true); + __inode_lru_list_add(inode, true); spin_unlock(&inode->i_lock); return; } @@ -1944,8 +1947,7 @@ static void iput_final(struct inode *inode) inode_state_replace(inode, I_WILL_FREE, I_FREEING); } - if (!list_empty(&inode->i_lru)) - inode_lru_list_del(inode); + inode_lru_list_del(inode); spin_unlock(&inode->i_lock); evict(inode); diff --git a/include/linux/fs.h b/include/linux/fs.h index a813abdcf218..33129cda3a99 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -3502,7 +3502,7 @@ static inline void remove_inode_hash(struct inode *inode) } extern void inode_sb_list_add(struct inode *inode); -extern void inode_add_lru(struct inode *inode); +extern void inode_lru_list_add(struct inode *inode); extern int sb_set_blocksize(struct super_block *, int); extern int sb_min_blocksize(struct super_block *, int); diff --git a/mm/filemap.c b/mm/filemap.c index 13f0259d993c..add5228a7d97 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -256,7 +256,7 @@ void filemap_remove_folio(struct folio *folio) __filemap_remove_folio(folio, NULL); xa_unlock_irq(&mapping->i_pages); if (mapping_shrinkable(mapping)) - inode_add_lru(mapping->host); + inode_lru_list_add(mapping->host); spin_unlock(&mapping->host->i_lock); filemap_free_folio(mapping, folio); @@ -335,7 +335,7 @@ void delete_from_page_cache_batch(struct address_space *mapping, page_cache_delete_batch(mapping, fbatch); xa_unlock_irq(&mapping->i_pages); if (mapping_shrinkable(mapping)) - inode_add_lru(mapping->host); + inode_lru_list_add(mapping->host); spin_unlock(&mapping->host->i_lock); for (i = 0; i < folio_batch_count(fbatch); i++) diff --git a/mm/truncate.c b/mm/truncate.c index 91eb92a5ce4f..ad9c0fa29d94 100644 --- a/mm/truncate.c +++ b/mm/truncate.c @@ -46,7 +46,7 @@ static void clear_shadow_entries(struct address_space *mapping, xas_unlock_irq(&xas); if (mapping_shrinkable(mapping)) - inode_add_lru(mapping->host); + inode_lru_list_add(mapping->host); spin_unlock(&mapping->host->i_lock); } @@ -111,7 +111,7 @@ static void truncate_folio_batch_exceptionals(struct address_space *mapping, xas_unlock_irq(&xas); if (mapping_shrinkable(mapping)) - inode_add_lru(mapping->host); + inode_lru_list_add(mapping->host); spin_unlock(&mapping->host->i_lock); out: folio_batch_remove_exceptionals(fbatch); @@ -622,7 +622,7 @@ int folio_unmap_invalidate(struct address_space *mapping, struct folio *folio, __filemap_remove_folio(folio, NULL); xa_unlock_irq(&mapping->i_pages); if (mapping_shrinkable(mapping)) - inode_add_lru(mapping->host); + inode_lru_list_add(mapping->host); spin_unlock(&mapping->host->i_lock); filemap_free_folio(mapping, folio); diff --git a/mm/vmscan.c b/mm/vmscan.c index b2fc8b626d3d..bb4a96c7b682 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -811,7 +811,7 @@ static int __remove_mapping(struct address_space *mapping, struct folio *folio, __filemap_remove_folio(folio, shadow); xa_unlock_irq(&mapping->i_pages); if (mapping_shrinkable(mapping)) - inode_add_lru(mapping->host); + inode_lru_list_add(mapping->host); spin_unlock(&mapping->host->i_lock); if (free_folio) diff --git a/mm/workingset.c b/mm/workingset.c index 68a76a91111f..d32dc2e02a61 100644 --- a/mm/workingset.c +++ b/mm/workingset.c @@ -755,7 +755,7 @@ static enum lru_status shadow_lru_isolate(struct list_head *item, xa_unlock_irq(&mapping->i_pages); if (mapping->host != NULL) { if (mapping_shrinkable(mapping)) - inode_add_lru(mapping->host); + inode_lru_list_add(mapping->host); spin_unlock(&mapping->host->i_lock); } ret = LRU_REMOVED_RETRY; From 003a6607304dddb314acc475883064feeefbe2e7 Mon Sep 17 00:00:00 2001 From: Mateusz Guzik Date: Tue, 4 Nov 2025 00:09:11 +0100 Subject: [PATCH 21/22] fs: push list presence check into inode_io_list_del() For consistency with sb routines. ext4 is the only consumer outside of evict(). Damage-controlling it is outside of the scope of this cleanup. Signed-off-by: Mateusz Guzik Link: https://patch.msgid.link/20251103230911.516866-1-mjguzik@gmail.com Reviewed-by: Jan Kara Signed-off-by: Christian Brauner --- fs/ext4/inode.c | 3 +-- fs/fs-writeback.c | 7 +++++++ fs/inode.c | 4 +--- 3 files changed, 9 insertions(+), 5 deletions(-) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index b864e9645f85..bf978ece70b3 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -202,8 +202,7 @@ void ext4_evict_inode(struct inode *inode) * the inode. Flush worker is ignoring it because of I_FREEING flag but * we still need to remove the inode from the writeback lists. */ - if (!list_empty_careful(&inode->i_io_list)) - inode_io_list_del(inode); + inode_io_list_del(inode); /* * Protect us against freezing - iput() caller didn't have to have any diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index c00b72e2d339..917a450c503b 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -1349,6 +1349,13 @@ void inode_io_list_del(struct inode *inode) { struct bdi_writeback *wb; + /* + * FIXME: ext4 can call here from ext4_evict_inode() after evict() already + * unlinked the inode. + */ + if (list_empty_careful(&inode->i_io_list)) + return; + wb = inode_to_wb_and_lock_list(inode); spin_lock(&inode->i_lock); diff --git a/fs/inode.c b/fs/inode.c index 7229a56732c6..970b1321c2b1 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -818,9 +818,7 @@ static void evict(struct inode *inode) BUG_ON(!(inode_state_read_once(inode) & I_FREEING)); BUG_ON(!list_empty(&inode->i_lru)); - if (!list_empty(&inode->i_io_list)) - inode_io_list_del(inode); - + inode_io_list_del(inode); inode_sb_list_del(inode); spin_lock(&inode->i_lock); From ca0d620b0afae20a7bcd5182606eba6860b2dbf2 Mon Sep 17 00:00:00 2001 From: Mateusz Guzik Date: Thu, 27 Nov 2025 14:15:26 +0100 Subject: [PATCH 22/22] dcache: touch up predicts in __d_lookup_rcu() Rationale is that if the parent dentry is the same and the length is the same, then you have to be unlucky for the name to not match. At the same time the dentry was literally just found on the hash, so you have to be even more unlucky to determine it is unhashed. While here add commentary while d_unhashed() is necessary. It was already removed once and brought back in: 2e321806b681b192 ("Revert "vfs: remove unnecessary d_unhashed() check from __d_lookup_rcu"") Signed-off-by: Mateusz Guzik Link: https://patch.msgid.link/20251127131526.4137768-1-mjguzik@gmail.com Reviewed-by: Jan Kara Signed-off-by: Christian Brauner --- fs/dcache.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) diff --git a/fs/dcache.c b/fs/dcache.c index 25131f105a60..ddc5ee49694d 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -2300,11 +2300,20 @@ struct dentry *__d_lookup_rcu(const struct dentry *parent, seq = raw_seqcount_begin(&dentry->d_seq); if (dentry->d_parent != parent) continue; - if (d_unhashed(dentry)) - continue; if (dentry->d_name.hash_len != hashlen) continue; - if (dentry_cmp(dentry, str, hashlen_len(hashlen)) != 0) + if (unlikely(dentry_cmp(dentry, str, hashlen_len(hashlen)) != 0)) + continue; + /* + * Check for the dentry being unhashed. + * + * As tempting as it is, we *can't* skip it because of a race window + * between us finding the dentry before it gets unhashed and loading + * the sequence counter after unhashing is finished. + * + * We can at least predict on it. + */ + if (unlikely(d_unhashed(dentry))) continue; *seqp = seq; return dentry;