io_uring: limit {io|sq}poll submit locking scope

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commit 89448c47b8 upstream

We don't need to take uring_lock for SQPOLL|IOPOLL to do
io_cqring_overflow_flush() when cq_overflow_list is empty, remove it
from the hot path.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Pavel Begunkov 2021-01-12 21:17:25 +00:00 • committed by Greg Kroah-Hartman

parent 1d5e50da5c

commit bc924dd21e

1 changed files with 6 additions and 3 deletions

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fs/io_uring.c

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