io_uring: no read/write-retry on -EAGAIN error and O_NONBLOCK marked file

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Actually two things that need fixing up here:

- The io_rw_reissue() -EAGAIN retry is explicit to block devices and
  regular files, so don't ever attempt to do that on other types of
  files.

- If we hit -EAGAIN on a nonblock marked file, don't arm poll handler for
  it. It should just complete with -EAGAIN.

Cc: stable@vger.kernel.org
Reported-by: Norman Maurer <norman.maurer@googlemail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Jens Axboe 2020-09-02 09:30:31 -06:00

parent 95d1c8e5f8

commit 355afaeb57

1 changed files with 10 additions and 0 deletions

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fs/io_uring.c

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