Revert "block: Merge bio before checking ->cached_rq"
This reverts commit 23f3e327. blk-mq sched bio merge still needs request to grab queue usage counter, so we can't simply call blk_mq_attempt_bio_merge() when queue usage counter isn't held. Fixes: 23f3e327 ("block: Merge bio before checking ->cached_rq") Cc: Xiao Ni <xni@redhat.com> Reported-by:Yi Zhang <yi.zhang@redhat.com> Signed-off-by:
Ming Lei <ming.lei@redhat.com> Link: https://lore.kernel.org/r/20230420112018.1108058-1-ming.lei@redhat.com Signed-off-by:
Jens Axboe <axboe@kernel.dk>
parent
f7ca1ae3
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