kevin/linux
1
Fork 0
Code

sbitmap: remove stale comment in sbq_calc_wake_batch

Browse Source 
After commit 106397376c ("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>
This commit is contained in:
Kemeng Shi 2024-01-15 22:56:26 +08:00 committed by Jens Axboe
parent 521277d12b
commit 5c7fa5c8ad
1 changed files with 0 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
lib/sbitmap.c
View File

@ -388,11 +388,6 @@ 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: