diff options
| -rw-r--r-- | fs/xfs/xfs_dquot.c | 35 | ||||
| -rw-r--r-- | fs/xfs/xfs_qm.c | 132 | ||||
| -rw-r--r-- | fs/xfs/xfs_qm.h | 15 | ||||
| -rw-r--r-- | fs/xfs/xfs_qm_bhv.c | 16 | ||||
| -rw-r--r-- | fs/xfs/xfs_super.c | 10 | ||||
| -rw-r--r-- | fs/xfs/xfs_super.h | 8 | ||||
| -rw-r--r-- | fs/xfs/xfs_trans_dquot.c | 4 |
7 files changed, 46 insertions, 174 deletions
diff --git a/fs/xfs/xfs_dquot.c b/fs/xfs/xfs_dquot.c index 2896ac953ed..4be16a0cbe5 100644 --- a/fs/xfs/xfs_dquot.c +++ b/fs/xfs/xfs_dquot.c @@ -59,6 +59,9 @@ int xfs_dqreq_num; int xfs_dqerror_mod = 33; #endif +struct kmem_zone *xfs_qm_dqtrxzone; +static struct kmem_zone *xfs_qm_dqzone; + static struct lock_class_key xfs_dquot_other_class; /* @@ -71,7 +74,7 @@ xfs_qm_dqdestroy( ASSERT(list_empty(&dqp->q_lru)); mutex_destroy(&dqp->q_qlock); - kmem_zone_free(xfs_Gqm->qm_dqzone, dqp); + kmem_zone_free(xfs_qm_dqzone, dqp); XFS_STATS_DEC(xs_qm_dquot); } @@ -491,7 +494,7 @@ xfs_qm_dqread( int cancelflags = 0; - dqp = kmem_zone_zalloc(xfs_Gqm->qm_dqzone, KM_SLEEP); + dqp = kmem_zone_zalloc(xfs_qm_dqzone, KM_SLEEP); dqp->dq_flags = type; dqp->q_core.d_id = cpu_to_be32(id); @@ -1040,3 +1043,31 @@ xfs_dqflock_pushbuf_wait( out_lock: xfs_dqflock(dqp); } + +int __init +xfs_qm_init(void) +{ + xfs_qm_dqzone = + kmem_zone_init(sizeof(struct xfs_dquot), "xfs_dquot"); + if (!xfs_qm_dqzone) + goto out; + + xfs_qm_dqtrxzone = + kmem_zone_init(sizeof(struct xfs_dquot_acct), "xfs_dqtrx"); + if (!xfs_qm_dqtrxzone) + goto out_free_dqzone; + + return 0; + +out_free_dqzone: + kmem_zone_destroy(xfs_qm_dqzone); +out: + return -ENOMEM; +} + +void __exit +xfs_qm_exit(void) +{ + kmem_zone_destroy(xfs_qm_dqtrxzone); + kmem_zone_destroy(xfs_qm_dqzone); +} diff --git a/fs/xfs/xfs_qm.c b/fs/xfs/xfs_qm.c index 2f92d3b0d8a..55c6afedc87 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, diff --git a/fs/xfs/xfs_qm.h b/fs/xfs/xfs_qm.h index 76447060cd4..44b858b79d7 100644 --- a/fs/xfs/xfs_qm.h +++ b/fs/xfs/xfs_qm.h @@ -22,13 +22,9 @@ #include "xfs_dquot.h" #include "xfs_quota_priv.h" -struct xfs_qm; struct xfs_inode; -extern struct mutex xfs_Gqm_lock; -extern struct xfs_qm *xfs_Gqm; -extern kmem_zone_t *qm_dqzone; -extern kmem_zone_t *qm_dqtrxzone; +extern struct kmem_zone *xfs_qm_dqtrxzone; /* * This defines the unit of allocation of dquots. @@ -42,15 +38,6 @@ extern kmem_zone_t *qm_dqtrxzone; #define XFS_DQUOT_CLUSTER_SIZE_FSB (xfs_filblks_t)1 /* - * Quota Manager (global) structure. Lives only in core. - */ -typedef struct xfs_qm { - uint qm_nrefs; /* file systems with quota on */ - kmem_zone_t *qm_dqzone; /* dquot mem-alloc zone */ - kmem_zone_t *qm_dqtrxzone; /* t_dqinfo of transactions */ -} xfs_qm_t; - -/* * Various quota information for individual filesystems. * The mount structure keeps a pointer to this. */ diff --git a/fs/xfs/xfs_qm_bhv.c b/fs/xfs/xfs_qm_bhv.c index 809f86857c6..e6986b5d80d 100644 --- a/fs/xfs/xfs_qm_bhv.c +++ b/fs/xfs/xfs_qm_bhv.c @@ -156,19 +156,3 @@ xfs_qm_newmount( return 0; } - -void __init -xfs_qm_init(void) -{ - printk(KERN_INFO "SGI XFS Quota Management subsystem\n"); - mutex_init(&xfs_Gqm_lock); -} - -void __exit -xfs_qm_exit(void) -{ - if (qm_dqzone) - kmem_zone_destroy(qm_dqzone); - if (qm_dqtrxzone) - kmem_zone_destroy(qm_dqtrxzone); -} diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c index e9ad7894648..06d23b976f4 100644 --- a/fs/xfs/xfs_super.c +++ b/fs/xfs/xfs_super.c @@ -1654,13 +1654,17 @@ init_xfs_fs(void) if (error) goto out_cleanup_procfs; - vfs_initquota(); + error = xfs_qm_init(); + if (error) + goto out_sysctl_unregister; error = register_filesystem(&xfs_fs_type); if (error) - goto out_sysctl_unregister; + goto out_qm_exit; return 0; + out_qm_exit: + xfs_qm_exit(); out_sysctl_unregister: xfs_sysctl_unregister(); out_cleanup_procfs: @@ -1682,7 +1686,7 @@ init_xfs_fs(void) STATIC void __exit exit_xfs_fs(void) { - vfs_exitquota(); + xfs_qm_exit(); unregister_filesystem(&xfs_fs_type); xfs_sysctl_unregister(); xfs_cleanup_procfs(); diff --git a/fs/xfs/xfs_super.h b/fs/xfs/xfs_super.h index 50a3266c999..09b0c26b224 100644 --- a/fs/xfs/xfs_super.h +++ b/fs/xfs/xfs_super.h @@ -21,13 +21,11 @@ #include <linux/exportfs.h> #ifdef CONFIG_XFS_QUOTA -extern void xfs_qm_init(void); +extern int xfs_qm_init(void); extern void xfs_qm_exit(void); -# define vfs_initquota() xfs_qm_init() -# define vfs_exitquota() xfs_qm_exit() #else -# define vfs_initquota() do { } while (0) -# define vfs_exitquota() do { } while (0) +# define xfs_qm_init() (0) +# define xfs_qm_exit() do { } while (0) #endif #ifdef CONFIG_XFS_POSIX_ACL diff --git a/fs/xfs/xfs_trans_dquot.c b/fs/xfs/xfs_trans_dquot.c index 877fe6367d2..279099717ed 100644 --- a/fs/xfs/xfs_trans_dquot.c +++ b/fs/xfs/xfs_trans_dquot.c @@ -875,7 +875,7 @@ STATIC void xfs_trans_alloc_dqinfo( xfs_trans_t *tp) { - tp->t_dqinfo = kmem_zone_zalloc(xfs_Gqm->qm_dqtrxzone, KM_SLEEP); + tp->t_dqinfo = kmem_zone_zalloc(xfs_qm_dqtrxzone, KM_SLEEP); } void @@ -884,6 +884,6 @@ xfs_trans_free_dqinfo( { if (!tp->t_dqinfo) return; - kmem_zone_free(xfs_Gqm->qm_dqtrxzone, tp->t_dqinfo); + kmem_zone_free(xfs_qm_dqtrxzone, tp->t_dqinfo); tp->t_dqinfo = NULL; } |