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(parent: a33ae9c) | patch
io_uring: optimise INIT_WQ_LIST
authorPavel Begunkov <asml.silence@gmail.com>
Mon, 4 Oct 2021 19:02:50 +0000 (20:02 +0100)
committerJens Axboe <axboe@kernel.dk>
Tue, 19 Oct 2021 11:49:54 +0000 (05:49 -0600)
commit765ff496c781a982ed0a882a7784c93ce10d1155
tree45aaee67b14fceecd955f2957252909dcf31dbc0tree | snapshot
parenta33ae9ce16a8ca62c5dffbe8909d185c6c5b4d77commit | diff
io_uring: optimise INIT_WQ_LIST

The invariant of io_wq_work_list is that it's empty IFF ->first is NULL,
so no need to initially set ->last. With now having more users of the
list it may play a role, i.e. used in each tw iteration and on every
completion flushing.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/c464ab5cab6e46a858c6d39c107e92b3b5291f13.1633373302.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
fs/io-wq.h diff | blob | history
Domain: System / Kernel;