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From: Jens Axboe <>
Subject: [PATCHSET v2 0/3] io_uring: make POLL_ADD support multiple waitqs
Date: Wed, 12 Feb 2020 13:25:12 -0700
Message-ID: <> (raw)

Here's v2 of the "let's make POLL_ADD work on everything" patchset. As
before, patches 1-2 are just basic prep patches, and should not have any
functional changes in them. Patch 3 adds support for allocating a new
io_poll_iocb unit if we get multiple additions through our queue proc
for the wait queues. This new 'poll' addition is queued up as well, and
it grabs a reference to the original poll request.

Changes since v1:

- Fix unused 'ret' variable in io_poll_double_wake()
- Fail if we get an attempt at a third waitqueue addition (Pavel)

Jens Axboe

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Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-12 20:25 Jens Axboe [this message]
2020-02-12 20:25 ` [PATCH 1/3] io_uring: store io_kiocb in wait->private Jens Axboe
2020-02-12 20:25 ` [PATCH 2/3] io_uring: abstract out main poll wake handler Jens Axboe
2020-02-12 20:25 ` [PATCH 3/3] io_uring: allow POLL_ADD with double poll_wait() users Jens Axboe
2020-02-13 15:50   ` Pavel Begunkov

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