Re: [PATCH 2/2] io_uring: use TWA_SIGNAL for task_work if the task isn't running

From: Sasha Levin <sashal@kernel.org>
To: Sasha Levin <sashal@kernel.org>
To: Jens Axboe <axboe@kernel.dk>
To: io-uring@vger.kernel.org
Cc: peterz@infradead.org, Jens Axboe <axboe@kernel.dk>
Cc: stable@vger.kernel.org
Subject: Re: [PATCH 2/2] io_uring: use TWA_SIGNAL for task_work if the task isn't running
Date: Wed, 19 Aug 2020 23:57:03 +0000	[thread overview]
Message-ID: <20200819235703.AA48120B1F@mail.kernel.org> (raw)
In-Reply-To: <20200808183439.342243-3-axboe@kernel.dk>

Hi

[This is an automated email]

This commit has been processed because it contains a -stable tag.
The stable tag indicates that it's relevant for the following trees: 5.7+

The bot has tested the following trees: v5.8.1, v5.7.15.

v5.8.1: Failed to apply! Possible dependencies:
    3fa5e0f33128 ("io_uring: optimise io_req_find_next() fast check")
    4503b7676a2e ("io_uring: catch -EIO from buffered issue request failure")
    7c86ffeeed30 ("io_uring: deduplicate freeing linked timeouts")
    9b0d911acce0 ("io_uring: kill REQ_F_LINK_NEXT")
    9b5f7bd93272 ("io_uring: replace find_next() out param with ret")
    a1d7c393c471 ("io_uring: enable READ/WRITE to use deferred completions")
    b63534c41e20 ("io_uring: re-issue block requests that failed because of resources")
    bcf5a06304d6 ("io_uring: support true async buffered reads, if file provides it")
    c2c4c83c58cb ("io_uring: use new io_req_task_work_add() helper throughout")
    c40f63790ec9 ("io_uring: use task_work for links if possible")
    e1e16097e265 ("io_uring: provide generic io_req_complete() helper")

v5.7.15: Failed to apply! Possible dependencies:
    0cdaf760f42e ("io_uring: remove req->needs_fixed_files")
    310672552f4a ("io_uring: async task poll trigger cleanup")
    3fa5e0f33128 ("io_uring: optimise io_req_find_next() fast check")
    405a5d2b2762 ("io_uring: avoid unnecessary io_wq_work copy for fast poll feature")
    4a38aed2a0a7 ("io_uring: batch reap of dead file registrations")
    4dd2824d6d59 ("io_uring: lazy get task")
    7c86ffeeed30 ("io_uring: deduplicate freeing linked timeouts")
    7cdaf587de7c ("io_uring: avoid whole io_wq_work copy for requests completed inline")
    7d01bd745a8f ("io_uring: remove obsolete 'state' parameter")
    9b0d911acce0 ("io_uring: kill REQ_F_LINK_NEXT")
    9b5f7bd93272 ("io_uring: replace find_next() out param with ret")
    c2c4c83c58cb ("io_uring: use new io_req_task_work_add() helper throughout")
    c40f63790ec9 ("io_uring: use task_work for links if possible")
    d4c81f38522f ("io_uring: don't arm a timeout through work.func")
    f5fa38c59cb0 ("io_wq: add per-wq work handler instead of per work")

NOTE: The patch will not be queued to stable trees until it is upstream.

How should we proceed with this patch?

-- 
Thanks
Sasha