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xfs: split dquot buffer operations out

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Parts of userspace want to be able to read and modify dquot buffers
(e.g. xfs_db) so we need to split out the reading and writing of
these buffers so it is easy to shared code with libxfs in userspace.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ben Myers <bpm@sgi.com>
This commit is contained in:
Dave Chinner
2013-10-15 09:17:52 +11:00
committed by Ben Myers
parent 5706278758
commit 9aede1d81b
8 changed files with 303 additions and 266 deletions
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22
fs/xfs/xfs_qm.c
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@@ -665,20 +665,6 @@ xfs_qm_dqdetach(
}
}
int
xfs_qm_calc_dquots_per_chunk(
struct xfs_mount *mp,
unsigned int nbblks) /* basic block units */
{
unsigned int ndquots;
ASSERT(nbblks > 0);
ndquots = BBTOB(nbblks);
do_div(ndquots, sizeof(xfs_dqblk_t));
return ndquots;
}
struct xfs_qm_isolate {
struct list_head buffers;
struct list_head dispose;
@@ -859,7 +845,7 @@ xfs_qm_init_quotainfo(
/* Precalc some constants */
qinf->qi_dqchunklen = XFS_FSB_TO_BB(mp, XFS_DQUOT_CLUSTER_SIZE_FSB);
qinf->qi_dqperchunk = xfs_qm_calc_dquots_per_chunk(mp,
qinf->qi_dqperchunk = xfs_calc_dquots_per_chunk(mp,
qinf->qi_dqchunklen);
mp->m_qflags |= (mp->m_sb.sb_qflags & XFS_ALL_QUOTA_CHKD);
@@ -1093,10 +1079,10 @@ xfs_qm_reset_dqcounts(
/*
* Do a sanity check, and if needed, repair the dqblk. Don't
* output any warnings because it's perfectly possible to
* find uninitialised dquot blks. See comment in xfs_qm_dqcheck.
* find uninitialised dquot blks. See comment in xfs_dqcheck.
*/
(void) xfs_qm_dqcheck(mp, ddq, id+j, type, XFS_QMOPT_DQREPAIR,
"xfs_quotacheck");
xfs_dqcheck(mp, ddq, id+j, type, XFS_QMOPT_DQREPAIR,
"xfs_quotacheck");
ddq->d_bcount = 0;
ddq->d_icount = 0;
ddq->d_rtbcount = 0;