Gh0st
/
linux
mirror of https://github.com/torvalds/linux.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

xfs: make qi_dquots a 64-bit value 

qi_dquots counts all quotas in the file system, which can be up to
3 * UINT_MAX and overflow a 32-bit counter, but can't be negative.
Make qi_dquots a uint64_t, and saturate the value to UINT_MAX for
userspace reporting.

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Carlos Maiolino <cem@kernel.org>
This commit is contained in:
Christoph Hellwig 2025-11-10 14:22:54 +01:00 committed by Carlos Maiolino
parent 204c8f77e8
commit 005d5ae0c5
2 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
fs/xfs/xfs_qm.h
View File

@ -57,7 +57,7 @@ struct xfs_quotainfo {
struct xfs_inode *qi_pquotaip; /* project quota inode */
struct xfs_inode *qi_dirip; /* quota metadir */
struct list_lru qi_lru;
int qi_dquots;
uint64_t qi_dquots;
struct mutex qi_quotaofflock;/* to serialize quotaoff */
xfs_filblks_t qi_dqchunklen; /* # BBs in a chunk of dqs */
uint qi_dqperchunk; /* # ondisk dq in above chunk */

2
fs/xfs/xfs_quotaops.c
View File

@ -65,7 +65,7 @@ xfs_fs_get_quota_state(
memset(state, 0, sizeof(*state));
if (!XFS_IS_QUOTA_ON(mp))
return 0;
state->s_incoredqs = q->qi_dquots;
state->s_incoredqs = min_t(uint64_t, q->qi_dquots, UINT_MAX);
if (XFS_IS_UQUOTA_ON(mp))
state->s_state[USRQUOTA].flags |= QCI_ACCT_ENABLED;
if (XFS_IS_UQUOTA_ENFORCED(mp))