io_uring: add comments on how the async buffered read retry works

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The retry based logic here isn't easy to follow unless you're already
familiar with how io_uring does task_work based retries. Add some
comments explaining the flow a little better.

Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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This commit is contained in:

Jens Axboe 2020-08-03 16:43:59 -06:00

parent cbd287c093

commit c1dd91d162

1 changed files with 22 additions and 1 deletions

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fs/io_uring.c

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