Re: [PATCH 4/6] block: clear BIO_PERCPU_CACHE flag if polling isn't supported
From: Keith Busch <kbusch@kernel.org>
Date: 2021-08-12 17:31:49
Also in:
linux-block
On Thu, Aug 12, 2021 at 09:41:47AM -0600, Jens Axboe wrote:
- if (!test_bit(QUEUE_FLAG_POLL, &q->queue_flags))
+ if (!test_bit(QUEUE_FLAG_POLL, &q->queue_flags)) {
+ /* can't support alloc cache if we turn off polling */
+ bio_clear_flag(bio, BIO_PERCPU_CACHE);
bio->bi_opf &= ~REQ_HIPRI;
+ }It looks like you should also clear BIO_PERCPU_CACHE if this bio gets split in blk_bio_segment_split().