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| author | Pavel Begunkov <asml.silence@gmail.com> | 2022-07-12 21:52:39 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-07-24 18:41:06 -0600 |
| commit | eb4a299b2f95437af6183946c2a2e850621cefdb (patch) | |
| tree | 16bd25d7e2ca9aab186eae6e517425c4da8e9b96 /tools/perf/scripts/python/export-to-sqlite.py | |
| parent | eb42cebb2cf24c48f60c32856a4bba93d42659c8 (diff) | |
io_uring: cache struct io_notif
kmalloc'ing struct io_notif is too expensive when done frequently, cache
them as many other resources in io_uring. Keep two list, the first one
is from where we're getting notifiers, it's protected by ->uring_lock.
The second is protected by ->completion_lock, to which we queue released
notifiers. Then we splice one list into another when needed.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/9dec18f7fcbab9f4bd40b96e5ae158b119945230.1657643355.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'tools/perf/scripts/python/export-to-sqlite.py')
0 files changed, 0 insertions, 0 deletions