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| author | Hristo Venev <hristo@venev.name> | 2019-08-26 20:23:46 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2019-08-27 19:42:02 +0300 |
| commit | 75b28affdd6aed1c68073ef53907c7bd822aff84 (patch) | |
| tree | 4a0f288bf42e5b8dfbc20c4d09dcaad41e69e59f /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | 27c4d3a3252fa661b049b8f57a548bba331133e0 (diff) | |
| download | linux-75b28affdd6aed1c68073ef53907c7bd822aff84.tar.xz | |
io_uring: allocate the two rings together
Both the sq and the cq rings have sizes just over a power of two, and
the sq ring is significantly smaller. By bundling them in a single
alllocation, we get the sq ring for free.
This also means that IORING_OFF_SQ_RING and IORING_OFF_CQ_RING now mean
the same thing. If we indicate this to userspace, we can save a mmap
call.
Signed-off-by: Hristo Venev <hristo@venev.name>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions