diff options
| -rw-r--r-- | fs/xfs/xfs_buf.c | 43 | ||||
| -rw-r--r-- | fs/xfs/xfs_buf.h | 4 |
2 files changed, 21 insertions, 26 deletions
diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index 63dbeb9..d3c2b58 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -1489,12 +1489,12 @@ xfs_setsize_buftarg( } STATIC int -xfs_alloc_delwrite_queue( +xfs_alloc_delwri_queue( xfs_buftarg_t *btp, const char *fsname) { - INIT_LIST_HEAD(&btp->bt_delwrite_queue); - spin_lock_init(&btp->bt_delwrite_lock); + INIT_LIST_HEAD(&btp->bt_delwri_queue); + spin_lock_init(&btp->bt_delwri_lock); btp->bt_flags = 0; btp->bt_task = kthread_run(xfsbufd, btp, "xfsbufd/%s", fsname); if (IS_ERR(btp->bt_task)) @@ -1524,7 +1524,7 @@ xfs_alloc_buftarg( spin_lock_init(&btp->bt_lru_lock); if (xfs_setsize_buftarg_early(btp, bdev)) goto error; - if (xfs_alloc_delwrite_queue(btp, fsname)) + if (xfs_alloc_delwri_queue(btp, fsname)) goto error; btp->bt_shrinker.shrink = xfs_buftarg_shrink; btp->bt_shrinker.seeks = DEFAULT_SEEKS; @@ -1544,46 +1544,44 @@ void xfs_buf_delwri_queue( xfs_buf_t *bp) { - struct list_head *dwq = &bp->b_target->bt_delwrite_queue; - spinlock_t *dwlk = &bp->b_target->bt_delwrite_lock; + struct xfs_buftarg *btp = bp->b_target; trace_xfs_buf_delwri_queue(bp, _RET_IP_); ASSERT(!(bp->b_flags & XBF_READ)); - spin_lock(dwlk); + spin_lock(&btp->bt_delwri_lock); if (!list_empty(&bp->b_list)) { /* if already in the queue, move it to the tail */ ASSERT(bp->b_flags & _XBF_DELWRI_Q); - list_move_tail(&bp->b_list, dwq); + list_move_tail(&bp->b_list, &btp->bt_delwri_queue); } else { /* start xfsbufd as it is about to have something to do */ - if (list_empty(dwq)) + if (list_empty(&btp->bt_delwri_queue)) wake_up_process(bp->b_target->bt_task); atomic_inc(&bp->b_hold); bp->b_flags |= XBF_DELWRI | _XBF_DELWRI_Q | XBF_ASYNC; - list_add_tail(&bp->b_list, dwq); + list_add_tail(&bp->b_list, &btp->bt_delwri_queue); } bp->b_queuetime = jiffies; - spin_unlock(dwlk); + spin_unlock(&btp->bt_delwri_lock); } void xfs_buf_delwri_dequeue( xfs_buf_t *bp) { - spinlock_t *dwlk = &bp->b_target->bt_delwrite_lock; int dequeued = 0; - spin_lock(dwlk); + spin_lock(&bp->b_target->bt_delwri_lock); if ((bp->b_flags & XBF_DELWRI) && !list_empty(&bp->b_list)) { ASSERT(bp->b_flags & _XBF_DELWRI_Q); list_del_init(&bp->b_list); dequeued = 1; } bp->b_flags &= ~(XBF_DELWRI|_XBF_DELWRI_Q); - spin_unlock(dwlk); + spin_unlock(&bp->b_target->bt_delwri_lock); if (dequeued) xfs_buf_rele(bp); @@ -1615,9 +1613,9 @@ xfs_buf_delwri_promote( if (bp->b_queuetime < jiffies - age) return; bp->b_queuetime = jiffies - age; - spin_lock(&btp->bt_delwrite_lock); - list_move(&bp->b_list, &btp->bt_delwrite_queue); - spin_unlock(&btp->bt_delwrite_lock); + spin_lock(&btp->bt_delwri_lock); + list_move(&bp->b_list, &btp->bt_delwri_queue); + spin_unlock(&btp->bt_delwri_lock); } STATIC void @@ -1638,15 +1636,13 @@ xfs_buf_delwri_split( unsigned long age) { xfs_buf_t *bp, *n; - struct list_head *dwq = &target->bt_delwrite_queue; - spinlock_t *dwlk = &target->bt_delwrite_lock; int skipped = 0; int force; force = test_and_clear_bit(XBT_FORCE_FLUSH, &target->bt_flags); INIT_LIST_HEAD(list); - spin_lock(dwlk); - list_for_each_entry_safe(bp, n, dwq, b_list) { + spin_lock(&target->bt_delwri_lock); + list_for_each_entry_safe(bp, n, &target->bt_delwri_queue, b_list) { ASSERT(bp->b_flags & XBF_DELWRI); if (!xfs_buf_ispinned(bp) && xfs_buf_trylock(bp)) { @@ -1663,10 +1659,9 @@ xfs_buf_delwri_split( } else skipped++; } - spin_unlock(dwlk); + spin_unlock(&target->bt_delwri_lock); return skipped; - } /* @@ -1716,7 +1711,7 @@ xfsbufd( } /* sleep for a long time if there is nothing to do. */ - if (list_empty(&target->bt_delwrite_queue)) + if (list_empty(&target->bt_delwri_queue)) tout = MAX_SCHEDULE_TIMEOUT; schedule_timeout_interruptible(tout); diff --git a/fs/xfs/xfs_buf.h b/fs/xfs/xfs_buf.h index 3f543ed..c238266 100644 --- a/fs/xfs/xfs_buf.h +++ b/fs/xfs/xfs_buf.h @@ -105,8 +105,8 @@ typedef struct xfs_buftarg { /* per device delwri queue */ struct task_struct *bt_task; - struct list_head bt_delwrite_queue; - spinlock_t bt_delwrite_lock; + struct list_head bt_delwri_queue; + spinlock_t bt_delwri_lock; unsigned long bt_flags; /* LRU control structures */ |