diff options
| author | Liu Bo <bo.li.liu@oracle.com> | 2017-12-22 16:23:01 -0700 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2018-01-22 16:08:19 +0100 |
| commit | 203e02d934ed0570551b87c8d0a0a9cf917487cb (patch) | |
| tree | 1805bf9673bf27a95f455e7651f5081ba9770dec /fs/btrfs | |
| parent | 36f7894f66f286e454bf00d308b989c3423ba0da (diff) | |
Btrfs: remove unused wait in btrfs_stripe_hash
In fact nobody is waiting on @wait's waitqueue, it can be safely
removed.
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs')
| -rw-r--r-- | fs/btrfs/ctree.h | 1 | ||||
| -rw-r--r-- | fs/btrfs/raid56.c | 10 |
2 files changed, 0 insertions, 11 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 09b72b6996ce..1a462ab85c49 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -679,7 +679,6 @@ enum btrfs_orphan_cleanup_state { /* used by the raid56 code to lock stripes for read/modify/write */ struct btrfs_stripe_hash { struct list_head hash_list; - wait_queue_head_t wait; spinlock_t lock; }; diff --git a/fs/btrfs/raid56.c b/fs/btrfs/raid56.c index 3940906533a2..9fa45e061953 100644 --- a/fs/btrfs/raid56.c +++ b/fs/btrfs/raid56.c @@ -231,7 +231,6 @@ int btrfs_alloc_stripe_hash_table(struct btrfs_fs_info *info) cur = h + i; INIT_LIST_HEAD(&cur->hash_list); spin_lock_init(&cur->lock); - init_waitqueue_head(&cur->wait); } x = cmpxchg(&info->stripe_hash_table, NULL, table); @@ -815,15 +814,6 @@ static noinline void unlock_stripe(struct btrfs_raid_bio *rbio) } goto done_nolock; - /* - * The barrier for this waitqueue_active is not needed, - * we're protected by h->lock and can't miss a wakeup. - */ - } else if (waitqueue_active(&h->wait)) { - spin_unlock(&rbio->bio_list_lock); - spin_unlock_irqrestore(&h->lock, flags); - wake_up(&h->wait); - goto done_nolock; } } done: |