io_uring: process requests completed with -EAGAIN on poll list

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A request that completes with an -EAGAIN result after it has been added
to the poll list, will not be removed from that list in io_do_iopoll()
because the f_op->iopoll() will not succeed for that request.

Maintain a retryable local list similar to the done list, and explicity
reissue requests with an -EAGAIN result.

Signed-off-by: Bijan Mottahedeh <bijan.mottahedeh@oracle.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Bijan Mottahedeh 2020-04-03 13:51:33 -07:00 • committed by Jens Axboe

parent c336e992cb

commit 581f981034

1 changed files with 26 additions and 3 deletions

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fs/io_uring.c

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