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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>
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36f7894f66
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203e02d934
2 changed files with 0 additions and 11 deletions
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@ -679,7 +679,6 @@ enum btrfs_orphan_cleanup_state {
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/* used by the raid56 code to lock stripes for read/modify/write */
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struct btrfs_stripe_hash {
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struct list_head hash_list;
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wait_queue_head_t wait;
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spinlock_t lock;
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};
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@ -231,7 +231,6 @@ int btrfs_alloc_stripe_hash_table(struct btrfs_fs_info *info)
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cur = h + i;
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INIT_LIST_HEAD(&cur->hash_list);
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spin_lock_init(&cur->lock);
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init_waitqueue_head(&cur->wait);
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}
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x = cmpxchg(&info->stripe_hash_table, NULL, table);
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@ -815,15 +814,6 @@ static noinline void unlock_stripe(struct btrfs_raid_bio *rbio)
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}
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goto done_nolock;
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/*
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* The barrier for this waitqueue_active is not needed,
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* we're protected by h->lock and can't miss a wakeup.
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*/
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} else if (waitqueue_active(&h->wait)) {
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spin_unlock(&rbio->bio_list_lock);
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spin_unlock_irqrestore(&h->lock, flags);
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wake_up(&h->wait);
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goto done_nolock;
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}
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}
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done:
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