block: blk_mq_rq_ctx_init cache ctx/q/hctx

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We should have enough of registers in blk_mq_rq_ctx_init(), store them
in local vars, so we don't keep reloading them.

note: keeping q->elevator may look unnecessary, but it's also used
inside inlined blk_mq_tags_from_data().

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Pavel Begunkov 2021-10-18 21:37:28 +01:00 • committed by Jens Axboe

parent 4f266f2be8

commit 605f784e4f

1 changed files with 9 additions and 5 deletions

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block/blk-mq.c

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