xfs: kill xfs_qmops
Kill the quota ops function vector and replace it with direct calls or
stubs in the CONFIG_XFS_QUOTA=n case.
Make sure we check XFS_IS_QUOTA_RUNNING in the right spots. We can remove
the number of those checks because the XFS_TRANS_DQ_DIRTY flag can't be set
otherwise.
This brings us back closer to the way this code worked in IRIX and earlier
Linux versions, but we keep a lot of the more useful factoring of common
code.
Eventually we should also kill xfs_qm_bhv.c, but that's left for a later
patch.
Reduces the size of the source code by about 250 lines and the size of
XFS module by about 1.5 kilobytes with quotas enabled:
text data bss dec hex filename
615957 2960 3848 622765 980ad fs/xfs/xfs.o
617231 3152 3848 624231 98667 fs/xfs/xfs.o.old
Fallout:
- xfs_qm_dqattach is split into xfs_qm_dqattach_locked which expects
the inode locked and xfs_qm_dqattach which does the locking around it,
thus removing XFS_QMOPT_ILOCKED.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Eric Sandeen <sandeen@sandeen.net>
diff --git a/fs/xfs/quota/xfs_trans_dquot.c b/fs/xfs/quota/xfs_trans_dquot.c
index 447173b..eafa7ab 100644
--- a/fs/xfs/quota/xfs_trans_dquot.c
+++ b/fs/xfs/quota/xfs_trans_dquot.c
@@ -111,7 +111,7 @@
* Carry forward whatever is left of the quota blk reservation to
* the spanky new transaction
*/
-STATIC void
+void
xfs_trans_dup_dqinfo(
xfs_trans_t *otp,
xfs_trans_t *ntp)
@@ -167,19 +167,17 @@
/*
* Wrap around mod_dquot to account for both user and group quotas.
*/
-STATIC void
+void
xfs_trans_mod_dquot_byino(
xfs_trans_t *tp,
xfs_inode_t *ip,
uint field,
long delta)
{
- xfs_mount_t *mp;
+ xfs_mount_t *mp = tp->t_mountp;
- ASSERT(tp);
- mp = tp->t_mountp;
-
- if (!XFS_IS_QUOTA_ON(mp) ||
+ if (!XFS_IS_QUOTA_RUNNING(mp) ||
+ !XFS_IS_QUOTA_ON(mp) ||
ip->i_ino == mp->m_sb.sb_uquotino ||
ip->i_ino == mp->m_sb.sb_gquotino)
return;
@@ -229,6 +227,7 @@
xfs_dqtrx_t *qtrx;
ASSERT(tp);
+ ASSERT(XFS_IS_QUOTA_RUNNING(tp->t_mountp));
qtrx = NULL;
if (tp->t_dqinfo == NULL)
@@ -346,7 +345,7 @@
* Unreserve just the reservations done by this transaction.
* dquot is still left locked at exit.
*/
-STATIC void
+void
xfs_trans_apply_dquot_deltas(
xfs_trans_t *tp)
{
@@ -357,7 +356,7 @@
long totalbdelta;
long totalrtbdelta;
- if (! (tp->t_flags & XFS_TRANS_DQ_DIRTY))
+ if (!(tp->t_flags & XFS_TRANS_DQ_DIRTY))
return;
ASSERT(tp->t_dqinfo);
@@ -531,7 +530,7 @@
* we simply throw those away, since that's the expected behavior
* when a transaction is curtailed without a commit.
*/
-STATIC void
+void
xfs_trans_unreserve_and_mod_dquots(
xfs_trans_t *tp)
{
@@ -768,7 +767,7 @@
{
int resvd = 0, error;
- if (!XFS_IS_QUOTA_ON(mp))
+ if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp))
return 0;
if (tp && tp->t_dqinfo == NULL)
@@ -811,18 +810,17 @@
* This doesn't change the actual usage, just the reservation.
* The inode sent in is locked.
*/
-STATIC int
+int
xfs_trans_reserve_quota_nblks(
- xfs_trans_t *tp,
- xfs_mount_t *mp,
- xfs_inode_t *ip,
- long nblks,
- long ninos,
- uint flags)
+ struct xfs_trans *tp,
+ struct xfs_inode *ip,
+ long nblks,
+ long ninos,
+ uint flags)
{
- int error;
+ struct xfs_mount *mp = ip->i_mount;
- if (!XFS_IS_QUOTA_ON(mp))
+ if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp))
return 0;
if (XFS_IS_PQUOTA_ON(mp))
flags |= XFS_QMOPT_ENOSPC;
@@ -831,7 +829,6 @@
ASSERT(ip->i_ino != mp->m_sb.sb_gquotino);
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
- ASSERT(XFS_IS_QUOTA_RUNNING(ip->i_mount));
ASSERT((flags & ~(XFS_QMOPT_FORCE_RES | XFS_QMOPT_ENOSPC)) ==
XFS_TRANS_DQ_RES_RTBLKS ||
(flags & ~(XFS_QMOPT_FORCE_RES | XFS_QMOPT_ENOSPC)) ==
@@ -840,11 +837,9 @@
/*
* Reserve nblks against these dquots, with trans as the mediator.
*/
- error = xfs_trans_reserve_quota_bydquots(tp, mp,
- ip->i_udquot, ip->i_gdquot,
- nblks, ninos,
- flags);
- return error;
+ return xfs_trans_reserve_quota_bydquots(tp, mp,
+ ip->i_udquot, ip->i_gdquot,
+ nblks, ninos, flags);
}
/*
@@ -895,25 +890,15 @@
xfs_trans_alloc_dqinfo(
xfs_trans_t *tp)
{
- (tp)->t_dqinfo = kmem_zone_zalloc(xfs_Gqm->qm_dqtrxzone, KM_SLEEP);
+ tp->t_dqinfo = kmem_zone_zalloc(xfs_Gqm->qm_dqtrxzone, KM_SLEEP);
}
-STATIC void
+void
xfs_trans_free_dqinfo(
xfs_trans_t *tp)
{
if (!tp->t_dqinfo)
return;
- kmem_zone_free(xfs_Gqm->qm_dqtrxzone, (tp)->t_dqinfo);
- (tp)->t_dqinfo = NULL;
+ kmem_zone_free(xfs_Gqm->qm_dqtrxzone, tp->t_dqinfo);
+ tp->t_dqinfo = NULL;
}
-
-xfs_dqtrxops_t xfs_trans_dquot_ops = {
- .qo_dup_dqinfo = xfs_trans_dup_dqinfo,
- .qo_free_dqinfo = xfs_trans_free_dqinfo,
- .qo_mod_dquot_byino = xfs_trans_mod_dquot_byino,
- .qo_apply_dquot_deltas = xfs_trans_apply_dquot_deltas,
- .qo_reserve_quota_nblks = xfs_trans_reserve_quota_nblks,
- .qo_reserve_quota_bydquots = xfs_trans_reserve_quota_bydquots,
- .qo_unreserve_and_mod_dquots = xfs_trans_unreserve_and_mod_dquots,
-};