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fs: assert on I_FREEING not being set in iput() and iput_not_last() 

Signed-off-by: Mateusz Guzik <mjguzik@gmail.com>
Link: https://patch.msgid.link/20251201132037.22835-1-mjguzik@gmail.com
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Mateusz Guzik 2025-12-01 14:20:37 +01:00 committed by Christian Brauner
parent 222047f68e
commit aa8aba61d4
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1 changed files with 2 additions and 1 deletions
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3
fs/inode.c
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@ -1968,7 +1968,7 @@ void iput(struct inode *inode)
retry:
lockdep_assert_not_held(&inode->i_lock);
VFS_BUG_ON_INODE(inode_state_read_once(inode) & I_CLEAR, inode);
VFS_BUG_ON_INODE(inode_state_read_once(inode) & (I_FREEING | 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
@ -2010,6 +2010,7 @@ EXPORT_SYMBOL(iput);
*/
void iput_not_last(struct inode *inode)
{
VFS_BUG_ON_INODE(inode_state_read_once(inode) & (I_FREEING | I_CLEAR), inode);
VFS_BUG_ON_INODE(atomic_read(&inode->i_count) < 2, inode);
WARN_ON(atomic_sub_return(1, &inode->i_count) == 0);