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(parent: 1d6d16e) | patch
io_uring: remove dependency on ring->sq/cq_entries
authorPavel Begunkov <asml.silence@gmail.com>
Sun, 16 May 2021 21:58:08 +0000 (22:58 +0100)
committerJens Axboe <axboe@kernel.dk>
Mon, 14 Jun 2021 14:23:05 +0000 (08:23 -0600)
commitd05ba3d558c3428232c1fa407d2059cadbf605fe
tree3c1ba9595f5e2e848344e1d43a348366bc7000detree | snapshot
parent1d6d16e0418fc9bf9b2ff157a80c1151a9fcbfe8commit | diff
io_uring: remove dependency on ring->sq/cq_entries

We have numbers of {sq,cq} entries cached in ctx, don't look up them in
user-shared rings as 1) it may fetch additional cacheline 2) user may
change it and so it's always error prone.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/745d31bc2da41283ddd0489ef784af5c8d6310e9.1621201931.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
fs/io_uring.c diff | blob | history
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