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| /openbmc/linux/io_uring/ |
| H A D | rsrc.c | 57bebf80 Wed Feb 22 08:36:51 CST 2023 Pavel Begunkov <asml.silence@gmail.com> io_uring/rsrc: optimise registered huge pages
When registering huge pages, internally io_uring will split them into
many PAGE_SIZE bvec entries. That's bad for performance as drivers need
to eventually dma-map the data and will do it individually for each bvec
entry. Coalesce huge pages into one large bvec.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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