diff options
| author | Christoph Hellwig <hch@infradead.org> | 2011-12-07 01:58:16 +0400 |
|---|---|---|
| committer | Ben Myers <bpm@sgi.com> | 2011-12-14 00:55:54 +0400 |
| commit | 80a376bfb7f8ff8f1942cb1bdd0052e908918252 (patch) | |
| tree | f370553d188065bfa2722b74076ef81b111cd477 /fs/xfs/xfs_dquot.c | |
| parent | 497507b9ee63499d364ad7149c584285cd925dfc (diff) | |
| download | linux-80a376bfb7f8ff8f1942cb1bdd0052e908918252.tar.xz | |
xfs: remove XFS_DQ_INACTIVE
Free dquots when purging them during umount instead of keeping them around
on the freelist in a degraded state. The out of order locking in
xfs_qm_dqpurge will be removed again later in this series.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.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 | 28 |
1 files changed, 17 insertions, 11 deletions
diff --git a/fs/xfs/xfs_dquot.c b/fs/xfs/xfs_dquot.c index 2a9ffc1086bc..3f94f2428a35 100644 --- a/fs/xfs/xfs_dquot.c +++ b/fs/xfs/xfs_dquot.c @@ -1302,6 +1302,14 @@ xfs_qm_dqpurge( ASSERT(mutex_is_locked(&mp->m_quotainfo->qi_dqlist_lock)); ASSERT(mutex_is_locked(&dqp->q_hash->qh_lock)); + /* + * XXX(hch): horrible locking order, will get cleaned up ASAP. + */ + if (!mutex_trylock(&xfs_Gqm->qm_dqfrlist_lock)) { + mutex_unlock(&dqp->q_hash->qh_lock); + return 1; + } + xfs_dqlock(dqp); /* * We really can't afford to purge a dquot that is @@ -1364,25 +1372,23 @@ xfs_qm_dqpurge( list_del_init(&dqp->q_hashlist); qh->qh_version++; + list_del_init(&dqp->q_mplist); mp->m_quotainfo->qi_dqreclaims++; mp->m_quotainfo->qi_dquots--; - /* - * XXX Move this to the front of the freelist, if we can get the - * freelist lock. - */ - ASSERT(!list_empty(&dqp->q_freelist)); - dqp->q_mount = NULL; - dqp->q_hash = NULL; - dqp->dq_flags = XFS_DQ_INACTIVE; - memset(&dqp->q_core, 0, sizeof(dqp->q_core)); + list_del_init(&dqp->q_freelist); + xfs_Gqm->qm_dqfrlist_cnt--; + xfs_dqfunlock(dqp); xfs_dqunlock(dqp); + + mutex_unlock(&xfs_Gqm->qm_dqfrlist_lock); mutex_unlock(&qh->qh_lock); - return (0); -} + xfs_qm_dqdestroy(dqp); + return 0; +} /* * Give the buffer a little push if it is incore and |