btrfs: remove pointless local variable in lock_stripe_add()
In lock_stripe_add() we're caching the bucket for the stripe hash table just for a single call to dereference the stripe hash. If we just directly call rbio_bucket() we can safe the pointless local variable. Also move the dereferencing of the stripe hash outside of the variable declaration block to not break over the 80 characters limit. Reviewed-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
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