io_uring: remove ctx->refs pinning on enter

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io_uring_enter() takes ctx->refs, which was previously preventing racing
with register quiesce. However, as register now doesn't touch the refs,
we can freely kill extra ctx pinning and rely on the fact that we're
holding a file reference preventing the ring from being destroyed.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/a11c57ad33a1be53541fce90669c1b79cf4d8940.1656153286.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Pavel Begunkov 2022-06-25 11:53:02 +01:00 • committed by Jens Axboe

parent 3273c4407a

commit fbb8bb0291

1 changed files with 4 additions and 12 deletions

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io_uring/io_uring.c

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