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authorChristoph Hellwig <hch@infradead.org>2012-04-23 15:58:37 +1000
committerBen Myers <bpm@sgi.com>2012-05-14 16:20:29 -0500
commitfe7257fd4b8ae9a3e354d9edb61890973e373ef0 (patch)
tree471b9ecc1cb21207cb95291d1ec5b81c393b060f /fs/xfs/xfs_dquot.c
parent4c46819a8097a75d3b378c5e56d2bcf47bb7408d (diff)
xfs: do not write the buffer from xfs_qm_dqflush
Instead of writing the buffer directly from inside xfs_qm_dqflush return it to the caller and let the caller decide what to do with the buffer. Also remove the pincount check in xfs_qm_dqflush that all non-blocking callers already implement and the now unused flags parameter and the XFS_DQ_IS_DIRTY check that all callers already perform. [ Dave Chinner: fixed build error cause by missing '{'. ] Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Mark Tinguely <tinguely@sgi.com> Signed-off-by: Ben Myers <bpm@sgi.com>
Diffstat (limited to 'fs/xfs/xfs_dquot.c')
-rw-r--r--fs/xfs/xfs_dquot.c43
1 files changed, 13 insertions, 30 deletions
diff --git a/fs/xfs/xfs_dquot.c b/fs/xfs/xfs_dquot.c
index 786a61e1ccc..53757d83e4f 100644
--- a/fs/xfs/xfs_dquot.c
+++ b/fs/xfs/xfs_dquot.c
@@ -878,8 +878,8 @@ xfs_qm_dqflush_done(
*/
int
xfs_qm_dqflush(
- xfs_dquot_t *dqp,
- uint flags)
+ struct xfs_dquot *dqp,
+ struct xfs_buf **bpp)
{
struct xfs_mount *mp = dqp->q_mount;
struct xfs_buf *bp;
@@ -891,14 +891,8 @@ xfs_qm_dqflush(
trace_xfs_dqflush(dqp);
- /*
- * If not dirty, or it's pinned and we are not supposed to block, nada.
- */
- if (!XFS_DQ_IS_DIRTY(dqp) ||
- ((flags & SYNC_TRYLOCK) && atomic_read(&dqp->q_pincount) > 0)) {
- xfs_dqfunlock(dqp);
- return 0;
- }
+ *bpp = NULL;
+
xfs_qm_dqunpin_wait(dqp);
/*
@@ -918,9 +912,8 @@ xfs_qm_dqflush(
xfs_trans_ail_delete(mp->m_ail, lip);
else
spin_unlock(&mp->m_ail->xa_lock);
-
- xfs_dqfunlock(dqp);
- return XFS_ERROR(EIO);
+ error = XFS_ERROR(EIO);
+ goto out_unlock;
}
/*
@@ -928,11 +921,8 @@ xfs_qm_dqflush(
*/
error = xfs_trans_read_buf(mp, NULL, mp->m_ddev_targp, dqp->q_blkno,
mp->m_quotainfo->qi_dqchunklen, 0, &bp);
- if (error) {
- ASSERT(error != ENOENT);
- xfs_dqfunlock(dqp);
- return error;
- }
+ if (error)
+ goto out_unlock;
/*
* Calculate the location of the dquot inside the buffer.
@@ -978,20 +968,13 @@ xfs_qm_dqflush(
xfs_log_force(mp, 0);
}
- if (flags & SYNC_WAIT)
- error = xfs_bwrite(bp);
- else
- xfs_buf_delwri_queue(bp);
-
- xfs_buf_relse(bp);
-
trace_xfs_dqflush_done(dqp);
+ *bpp = bp;
+ return 0;
- /*
- * dqp is still locked, but caller is free to unlock it now.
- */
- return error;
-
+out_unlock:
+ xfs_dqfunlock(dqp);
+ return XFS_ERROR(EIO);
}
/*