blk-mq: defer to the normal submission path for non-flush flush commands

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If blk_insert_flush decides that a command does not need to use the
flush state machine, return false and let blk_mq_submit_bio handle
it the normal way (including using an I/O scheduler) instead of doing
a bypass insert.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Link: https://lore.kernel.org/r/20230519044050.107790-4-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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This commit is contained in:

Christoph Hellwig 2023-05-19 06:40:46 +02:00 • committed by Jens Axboe

parent c1075e548c

commit 360f264834

4 changed files with 13 additions and 23 deletions

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22

block/blk-flush.c

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8

block/blk-mq.c

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4

block/blk-mq.h

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2

block/blk.h

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