io_uring: allow retry for O_NONBLOCK if async is supported

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A common complaint is that using O_NONBLOCK files with io_uring can be a
bit of a pain. Be a bit nicer and allow normal retry IFF the file does
support async behavior. This makes it possible to use io_uring more
reliably with O_NONBLOCK files, for use cases where it either isn't
possible or feasible to modify the file flags.

Cc: stable@vger.kernel.org
Reported-and-tested-by: Dan Melnic <dmm@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Jens Axboe 2021-09-14 11:08:37 -06:00

parent 9c7b0ba887

commit 5d329e1286

1 changed files with 11 additions and 5 deletions

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fs/io_uring.c

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