block: enable per-cpu bio caching for the fs bio set

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This is useful for polled IO on a file, or for polled IO with the
io_uring passthrough mechanism. If bio allocations are done with
REQ_POLLED for those cases, then initializing the bio set with
BIOSET_PERCPU_CACHE enables the local per-cpu cache which eliminates
allocations (and frees) of bio structs when possible.

Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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This commit is contained in:

Jens Axboe 2022-09-02 10:40:11 -06:00

parent 16ede66973

commit 12c5b70c18

1 changed files with 2 additions and 1 deletions

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block/bio.c

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