diff options
Diffstat (limited to 'fs/xfs/xfs_qm.c')
-rw-r--r-- | fs/xfs/xfs_qm.c | 132 |
1 files changed, 0 insertions, 132 deletions
diff --git a/fs/xfs/xfs_qm.c b/fs/xfs/xfs_qm.c index 2f92d3b..55c6afe 100644 --- a/fs/xfs/xfs_qm.c +++ b/fs/xfs/xfs_qm.c @@ -48,127 +48,11 @@ * quota functionality, including maintaining the freelist and hash * tables of dquots. */ -struct mutex xfs_Gqm_lock; -struct xfs_qm *xfs_Gqm; - -kmem_zone_t *qm_dqzone; -kmem_zone_t *qm_dqtrxzone; - STATIC int xfs_qm_init_quotainos(xfs_mount_t *); STATIC int xfs_qm_init_quotainfo(xfs_mount_t *); STATIC int xfs_qm_shake(struct shrinker *, struct shrink_control *); /* - * Initialize the XQM structure. - * Note that there is not one quota manager per file system. - */ -STATIC struct xfs_qm * -xfs_Gqm_init(void) -{ - xfs_qm_t *xqm; - - xqm = kmem_zalloc(sizeof(xfs_qm_t), KM_SLEEP); - - /* - * dquot zone. we register our own low-memory callback. - */ - if (!qm_dqzone) { - xqm->qm_dqzone = kmem_zone_init(sizeof(xfs_dquot_t), - "xfs_dquots"); - qm_dqzone = xqm->qm_dqzone; - } else - xqm->qm_dqzone = qm_dqzone; - - /* - * The t_dqinfo portion of transactions. - */ - if (!qm_dqtrxzone) { - xqm->qm_dqtrxzone = kmem_zone_init(sizeof(xfs_dquot_acct_t), - "xfs_dqtrx"); - qm_dqtrxzone = xqm->qm_dqtrxzone; - } else - xqm->qm_dqtrxzone = qm_dqtrxzone; - - xqm->qm_nrefs = 0; - return xqm; -} - -/* - * Destroy the global quota manager when its reference count goes to zero. - */ -STATIC void -xfs_qm_destroy( - struct xfs_qm *xqm) -{ - ASSERT(xqm != NULL); - ASSERT(xqm->qm_nrefs == 0); - - kmem_free(xqm); -} - -/* - * Called at mount time to let XQM know that another file system is - * starting quotas. This isn't crucial information as the individual mount - * structures are pretty independent, but it helps the XQM keep a - * global view of what's going on. - */ -/* ARGSUSED */ -STATIC int -xfs_qm_hold_quotafs_ref( - struct xfs_mount *mp) -{ - /* - * Need to lock the xfs_Gqm structure for things like this. For example, - * the structure could disappear between the entry to this routine and - * a HOLD operation if not locked. - */ - mutex_lock(&xfs_Gqm_lock); - - if (!xfs_Gqm) { - xfs_Gqm = xfs_Gqm_init(); - if (!xfs_Gqm) { - mutex_unlock(&xfs_Gqm_lock); - return ENOMEM; - } - } - - /* - * We can keep a list of all filesystems with quotas mounted for - * debugging and statistical purposes, but ... - * Just take a reference and get out. - */ - xfs_Gqm->qm_nrefs++; - mutex_unlock(&xfs_Gqm_lock); - - return 0; -} - - -/* - * Release the reference that a filesystem took at mount time, - * so that we know when we need to destroy the entire quota manager. - */ -/* ARGSUSED */ -STATIC void -xfs_qm_rele_quotafs_ref( - struct xfs_mount *mp) -{ - ASSERT(xfs_Gqm); - ASSERT(xfs_Gqm->qm_nrefs > 0); - - /* - * Destroy the entire XQM. If somebody mounts with quotaon, this'll - * be restarted. - */ - mutex_lock(&xfs_Gqm_lock); - if (--xfs_Gqm->qm_nrefs == 0) { - xfs_qm_destroy(xfs_Gqm); - xfs_Gqm = NULL; - } - mutex_unlock(&xfs_Gqm_lock); -} - -/* * We use the batch lookup interface to iterate over the dquots as it * currently is the only interface into the radix tree code that allows * fuzzy lookups instead of exact matches. Holding the lock over multiple @@ -738,13 +622,6 @@ xfs_qm_init_quotainfo( ASSERT(XFS_IS_QUOTA_RUNNING(mp)); - /* - * Tell XQM that we exist as soon as possible. - */ - if ((error = xfs_qm_hold_quotafs_ref(mp))) { - return error; - } - qinf = mp->m_quotainfo = kmem_zalloc(sizeof(xfs_quotainfo_t), KM_SLEEP); /* @@ -850,17 +727,9 @@ xfs_qm_destroy_quotainfo( qi = mp->m_quotainfo; ASSERT(qi != NULL); - ASSERT(xfs_Gqm != NULL); unregister_shrinker(&qi->qi_shrinker); - /* - * Release the reference that XQM kept, so that we know - * when the XQM structure should be freed. We cannot assume - * that xfs_Gqm is non-null after this point. - */ - xfs_qm_rele_quotafs_ref(mp); - if (qi->qi_uquotaip) { IRELE(qi->qi_uquotaip); qi->qi_uquotaip = NULL; /* paranoia */ @@ -1447,7 +1316,6 @@ xfs_qm_quotacheck( * We must turn off quotas. */ ASSERT(mp->m_quotainfo != NULL); - ASSERT(xfs_Gqm != NULL); xfs_qm_destroy_quotainfo(mp); if (xfs_mount_reset_sbqflags(mp)) { xfs_warn(mp, |