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From: Jann Horn <jannh@google.com>
To: Jens Axboe <axboe@kernel.dk>
Cc: Clay Harris <bugs@claycon.org>, io-uring <io-uring@vger.kernel.org>
Subject: Re: IORING_OP_CLOSE fails on fd opened with O_PATH
Date: Tue, 2 Jun 2020 20:22:41 +0200	[thread overview]
Message-ID: <CAG48ez1CvEpjNTfOJWBRmR6SVkQjLVeSi2gFvuceR0ubF_HJCQ@mail.gmail.com> (raw)
In-Reply-To: <4eaad89b-f6e3-2ff4-af07-f63f7ce35bdc@kernel.dk>

On Sun, May 31, 2020 at 10:19 PM Jens Axboe <axboe@kernel.dk> wrote:
> We just need this ported to stable once it goes into 5.8-rc:
>
> https://git.kernel.dk/cgit/linux-block/commit/?h=for-5.8/io_uring&id=904fbcb115c85090484dfdffaf7f461d96fe8e53

How does that work? Who guarantees that the close operation can't drop
the refcount of the uring instance to zero before reaching the fdput()
in io_uring_enter?

  reply	other threads:[~2020-06-02 18:23 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-31 12:47 IORING_OP_CLOSE fails on fd opened with O_PATH Clay Harris
2020-05-31 14:46 ` Jens Axboe
2020-05-31 20:19   ` Jens Axboe
2020-06-02 18:22     ` Jann Horn [this message]
2020-06-02 18:42       ` Jens Axboe
2020-06-02 19:16         ` Jann Horn
2020-06-02 21:39           ` Jens Axboe
2020-06-08 11:21   ` Clay Harris
2020-06-08 20:19     ` Jens Axboe
2020-06-09  1:40       ` Clay Harris
2020-06-09  2:14         ` Jens Axboe
2020-06-09  5:16           ` Clay Harris
2020-06-10  1:52             ` Jens Axboe

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