sbitmap: remove stale comment in sbq_calc_wake_batch

jira LE-4066
Rebuild_History Non-Buildable kernel-4.18.0-553.72.1.el8_10
commit-author Kemeng Shi <shikemeng@huaweicloud.com>
commit 5c7fa5c

After commit 1063973 ("sbitmap: fix batching wakeup"), we may wake
up more than one queue for each batch. Just remove stale comment that
we wake up only one queue for each batch.

	Signed-off-by: Kemeng Shi <shikemeng@huaweicloud.com>
Link: https://lore.kernel.org/r/20240115145626.665562-1-shikemeng@huaweicloud.com
	Signed-off-by: Jens Axboe <axboe@kernel.dk>
(cherry picked from commit 5c7fa5c)
	Signed-off-by: Jonathan Maple <jmaple@ciq.com>

Author: PlaidCat

lib/sbitmap.c

@@ -410,11 +410,6 @@ static unsigned int sbq_calc_wake_batch(struct sbitmap_queue *sbq,
 	unsigned int shallow_depth;
 
 	/*
-	 * For each batch, we wake up one queue. We need to make sure that our
-	 * batch size is small enough that the full depth of the bitmap,
-	 * potentially limited by a shallow depth, is enough to wake up all of
-	 * the queues.
-	 *
 	 * Each full word of the bitmap has bits_per_word bits, and there might
 	 * be a partial word. There are depth / bits_per_word full words and
 	 * depth % bits_per_word bits left over. In bitwise arithmetic: