@@ -100,7 +100,6 @@
#define XFS_QMOPT_FORCE_RES 0x0000010 /* ignore quota limits */
#define XFS_QMOPT_SBVERSION 0x0000040 /* change superblock version num */
#define XFS_QMOPT_GQUOTA 0x0002000 /* group dquot requested */
-#define XFS_QMOPT_ENOSPC 0x0004000 /* enospc instead of edquot (prj) */
/*
* flags to xfs_trans_mod_dquot to indicate which field needs to be
@@ -1808,7 +1808,7 @@ struct xfs_dquot *
{
struct xfs_mount *mp = ip->i_mount;
uint64_t delblks;
- unsigned int blkflags, prjflags = 0;
+ unsigned int blkflags;
struct xfs_dquot *udq_unres = NULL;
struct xfs_dquot *gdq_unres = NULL;
struct xfs_dquot *pdq_unres = NULL;
@@ -1849,7 +1849,6 @@ struct xfs_dquot *
if (XFS_IS_PQUOTA_ON(ip->i_mount) && pdqp &&
ip->i_d.di_projid != be32_to_cpu(pdqp->q_core.d_id)) {
- prjflags = XFS_QMOPT_ENOSPC;
pdq_delblks = pdqp;
if (delblks) {
ASSERT(ip->i_pdquot);
@@ -1859,8 +1858,7 @@ struct xfs_dquot *
error = xfs_trans_reserve_quota_bydquots(tp, ip->i_mount,
udq_delblks, gdq_delblks, pdq_delblks,
- ip->i_d.di_nblocks, 1,
- flags | blkflags | prjflags);
+ ip->i_d.di_nblocks, 1, flags | blkflags);
if (error)
return error;
@@ -1878,8 +1876,7 @@ struct xfs_dquot *
ASSERT(udq_unres || gdq_unres || pdq_unres);
error = xfs_trans_reserve_quota_bydquots(NULL, ip->i_mount,
udq_delblks, gdq_delblks, pdq_delblks,
- (xfs_qcnt_t)delblks, 0,
- flags | blkflags | prjflags);
+ (xfs_qcnt_t)delblks, 0, flags | blkflags);
if (error)
return error;
xfs_trans_reserve_quota_bydquots(NULL, ip->i_mount,
@@ -711,7 +711,7 @@
error_return:
xfs_dqunlock(dqp);
- if (flags & XFS_QMOPT_ENOSPC)
+ if (XFS_QM_ISPDQ(dqp))
return -ENOSPC;
return -EDQUOT;
}
@@ -751,15 +751,13 @@
ASSERT(flags & XFS_QMOPT_RESBLK_MASK);
if (udqp) {
- error = xfs_trans_dqresv(tp, mp, udqp, nblks, ninos,
- (flags & ~XFS_QMOPT_ENOSPC));
+ error = xfs_trans_dqresv(tp, mp, udqp, nblks, ninos, flags);
if (error)
return error;
}
if (gdqp) {
- error = xfs_trans_dqresv(tp, mp, gdqp, nblks, ninos,
- (flags & ~XFS_QMOPT_ENOSPC));
+ error = xfs_trans_dqresv(tp, mp, gdqp, nblks, ninos, flags);
if (error)
goto unwind_usr;
}
@@ -804,16 +802,12 @@
if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp))
return 0;
- if (XFS_IS_PQUOTA_ON(mp))
- flags |= XFS_QMOPT_ENOSPC;
ASSERT(!xfs_is_quota_inode(&mp->m_sb, ip->i_ino));
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
- ASSERT((flags & ~(XFS_QMOPT_FORCE_RES | XFS_QMOPT_ENOSPC)) ==
- XFS_TRANS_DQ_RES_RTBLKS ||
- (flags & ~(XFS_QMOPT_FORCE_RES | XFS_QMOPT_ENOSPC)) ==
- XFS_TRANS_DQ_RES_BLKS);
+ ASSERT((flags & ~(XFS_QMOPT_FORCE_RES)) == XFS_TRANS_DQ_RES_RTBLKS ||
+ (flags & ~(XFS_QMOPT_FORCE_RES)) == XFS_TRANS_DQ_RES_BLKS);
/*
* Reserve nblks against these dquots, with trans as the mediator.
XFS project quota treats project hierarchies as "mini filesysems" and so rather than -EDQUOT, the intent is to return -ENOSPC when a quota reservation fails, but this behavior is not consistent. The only place we make a decision between -EDQUOT and -ENOSPC returns based on quota type is in xfs_trans_dqresv(). This behavior is currently controlled by whether or not the XFS_QMOPT_ENOSPC flag gets passed into the quota reservation. However, its use is not consistent; paths such as xfs_create() and xfs_symlink() don't set the flag, so a reservation failure will return -EDQUOT for project quota reservation failures rather than -ENOSPC for these sorts of operations, even for project quota: # mkdir mnt/project # xfs_quota -x -c "project -s -p mnt/project 42" mnt # xfs_quota -x -c 'limit -p isoft=2 ihard=3 42' mnt # touch mnt/project/file{1,2,3} touch: cannot touch ‘mnt/project/file3’: Disk quota exceeded We can make this consistent by not requiring the flag to be set at the top of the callchain; instead we can simply test whether we are reserving a project quota with XFS_QM_ISPDQ in xfs_trans_dqresv and if so, return -ENOSPC for that failure. This removes the need for the XFS_QMOPT_ENOSPC altogether and simplifies the code a fair bit. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> --- fs/xfs/libxfs/xfs_quota_defs.h | 1 - fs/xfs/xfs_qm.c | 9 +++------ fs/xfs/xfs_trans_dquot.c | 16 +++++----------- 3 files changed, 8 insertions(+), 18 deletions(-)