diff options
| author | Christoph Hellwig <hch@infradead.org> | 2012-04-23 15:58:37 +1000 |
|---|---|---|
| committer | Ben Myers <bpm@sgi.com> | 2012-05-14 16:20:29 -0500 |
| commit | fe7257fd4b8ae9a3e354d9edb61890973e373ef0 (patch) | |
| tree | 471b9ecc1cb21207cb95291d1ec5b81c393b060f /fs/xfs/xfs_dquot.c | |
| parent | 4c46819a8097a75d3b378c5e56d2bcf47bb7408d (diff) | |
| download | lwn-fe7257fd4b8ae9a3e354d9edb61890973e373ef0.tar.gz lwn-fe7257fd4b8ae9a3e354d9edb61890973e373ef0.zip | |
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.c | 43 |
1 files changed, 13 insertions, 30 deletions
diff --git a/fs/xfs/xfs_dquot.c b/fs/xfs/xfs_dquot.c index 786a61e1cccd..53757d83e4f6 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); } /* |