Commit 203e02d9 authored by Liu Bo's avatar Liu Bo Committed by David Sterba

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: default avatarLiu Bo <bo.li.liu@oracle.com>
Reviewed-by: default avatarDavid Sterba <dsterba@suse.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent 36f7894f
......@@ -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;
};
......
......@@ -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:
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment