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(parent: 4d63306) | patch
block: optimize __blk_segment_map_sg() for single-page bvec
authorMing Lei <ming.lei@redhat.com>
Wed, 27 Feb 2019 12:40:11 +0000 (20:40 +0800)
committerJens Axboe <axboe@kernel.dk>
Wed, 27 Feb 2019 13:18:54 +0000 (06:18 -0700)
commit48d7727cae1209235700ed90f8f11426027b333b
treeb4232539d43b720be2c0ff40017c14457000e0e2tree | snapshot
parent4d633062c1c0794a6b3836b7b55afba4599736e8commit | diff
block: optimize __blk_segment_map_sg() for single-page bvec

Introduce a fast path for single-page bvec IO, then blk_bvec_map_sg()
can be avoided.

Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
block/blk-merge.c diff | blob | history
Domain: System / Kernel;