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| author | Jens Axboe <axboe@kernel.dk> | 2024-10-22 13:41:42 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2024-10-29 13:43:27 -0600 |
| commit | 371b47da25e1f7a1a6323f84c776bd9fa079a490 (patch) | |
| tree | 6ae5cba18cd6563a9b52b26fdcdc31a6a5416fea /scripts/patch-kernel | |
| parent | io_uring: switch struct ext_arg from __kernel_timespec to timespec64 (diff) | |
| download | linux-371b47da25e1f7a1a6323f84c776bd9fa079a490.tar.gz linux-371b47da25e1f7a1a6323f84c776bd9fa079a490.zip | |
io_uring: change io_get_ext_arg() to use uaccess begin + end
In scenarios where a high frequency of wait events are seen, the copy
of the struct io_uring_getevents_arg is quite noticeable in the
profiles in terms of time spent. It can be seen as up to 3.5-4.5%.
Rewrite the copy-in logic, saving about 0.5% of the time.
Reviewed-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'scripts/patch-kernel')
0 files changed, 0 insertions, 0 deletions