diff options
| author | Pavel Begunkov <[email protected]> | 2022-04-12 15:09:44 +0100 |
|---|---|---|
| committer | Jens Axboe <[email protected]> | 2022-04-24 18:02:46 -0600 |
| commit | 90e7c35fb89154439a4a604699faf36adbfa871b (patch) | |
| tree | aac2f1e5611d5f1b41aaa1c25cee6d92cc7c1964 /tools/perf/scripts/python/stackcollapse.py | |
| parent | cef216fc32d7628206c523994e7e267e7a8dda59 (diff) | |
io_uring: memcpy CQE from req
We can do CQE filling a bit more efficiently when req->cqe is fully
filled by memcpy()'ing it to the userspace instead of doing it field by
field. It's easier on register spilling, removes a couple of extra
loads/stores and write combines two u32 memory writes.
Signed-off-by: Pavel Begunkov <[email protected]>
Link: https://lore.kernel.org/r/ee3f514ff28b1fe3347a8eca93a9d91647f2eaad.1649771823.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions