io_uring: enable use of bio alloc cache

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Mark polled IO as being safe for dipping into the bio allocation
cache, in case the targeted bio_set has it enabled.

This brings an IOPOLL gen2 Optane QD=128 workload from ~3.2M IOPS to
~3.5M IOPS.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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This commit is contained in:

Jens Axboe 2021-03-08 11:40:23 -07:00

parent be863b9e43

commit 394918ebb8

1 changed files with 1 additions and 1 deletions

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fs/io_uring.c

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