diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/gfs2/incore.h | 1 | ||||
| -rw-r--r-- | fs/gfs2/ops_fstype.c | 1 | ||||
| -rw-r--r-- | fs/gfs2/quota.c | 16 |
3 files changed, 10 insertions, 8 deletions
diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h index 4b9aa5b6908c..8c64e268b7ef 100644 --- a/fs/gfs2/incore.h +++ b/fs/gfs2/incore.h @@ -734,6 +734,7 @@ struct gfs2_sbd { unsigned int sd_quota_slots; unsigned long *sd_quota_bitmap; + spinlock_t sd_bitmap_lock; u64 sd_quota_sync_gen; diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c index 27648e803d1e..06a66c9624e6 100644 --- a/fs/gfs2/ops_fstype.c +++ b/fs/gfs2/ops_fstype.c @@ -99,6 +99,7 @@ static struct gfs2_sbd *init_sbd(struct super_block *sb) init_waitqueue_head(&sdp->sd_quota_wait); INIT_LIST_HEAD(&sdp->sd_trunc_list); spin_lock_init(&sdp->sd_trunc_lock); + spin_lock_init(&sdp->sd_bitmap_lock); mapping = &sdp->sd_aspace; diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c index 79be67ab8603..02a2740f2468 100644 --- a/fs/gfs2/quota.c +++ b/fs/gfs2/quota.c @@ -76,6 +76,7 @@ #define GFS2_QD_HASH_MASK (GFS2_QD_HASH_SIZE - 1) /* Lock order: qd_lock -> bucket lock -> qd->lockref.lock -> lru lock */ +/* -> sd_bitmap_lock */ static DEFINE_SPINLOCK(qd_lock); struct list_lru gfs2_qd_lru; @@ -319,7 +320,7 @@ static int slot_get(struct gfs2_quota_data *qd) unsigned int bit; int error = 0; - spin_lock(&qd_lock); + spin_lock(&sdp->sd_bitmap_lock); if (qd->qd_slot_count != 0) goto out; @@ -331,7 +332,7 @@ static int slot_get(struct gfs2_quota_data *qd) out: qd->qd_slot_count++; } - spin_unlock(&qd_lock); + spin_unlock(&sdp->sd_bitmap_lock); return error; } @@ -340,23 +341,23 @@ static void slot_hold(struct gfs2_quota_data *qd) { struct gfs2_sbd *sdp = qd->qd_sbd; - spin_lock(&qd_lock); + spin_lock(&sdp->sd_bitmap_lock); gfs2_assert(sdp, qd->qd_slot_count); qd->qd_slot_count++; - spin_unlock(&qd_lock); + spin_unlock(&sdp->sd_bitmap_lock); } static void slot_put(struct gfs2_quota_data *qd) { struct gfs2_sbd *sdp = qd->qd_sbd; - spin_lock(&qd_lock); + spin_lock(&sdp->sd_bitmap_lock); gfs2_assert(sdp, qd->qd_slot_count); if (!--qd->qd_slot_count) { BUG_ON(!test_and_clear_bit(qd->qd_slot, sdp->sd_quota_bitmap)); qd->qd_slot = -1; } - spin_unlock(&qd_lock); + spin_unlock(&sdp->sd_bitmap_lock); } static int bh_get(struct gfs2_quota_data *qd) @@ -434,8 +435,7 @@ static int qd_check_sync(struct gfs2_sbd *sdp, struct gfs2_quota_data *qd, list_move_tail(&qd->qd_list, &sdp->sd_quota_list); set_bit(QDF_LOCKED, &qd->qd_flags); qd->qd_change_sync = qd->qd_change; - gfs2_assert_warn(sdp, qd->qd_slot_count); - qd->qd_slot_count++; + slot_hold(qd); return 1; } |