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

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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>

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Pavel Begunkov 2020-12-17 00:24:39 +00:00 • committed by Jens Axboe

parent 09e88404f4

commit 89448c47b8

1 changed files with 6 additions and 3 deletions

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fs/io_uring.c

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