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From: "Kirill A. Shutemov" <>
To: Jens Axboe <>
Subject: Re: [PATCH 3/3] io_uring: add IORING_OP_MADVISE
Date: Sun, 12 Jan 2020 02:10:14 +0300
Message-ID: <20200111231014.bmpxdg2juw3mxiwr@box> (raw)
In-Reply-To: <>

On Fri, Jan 10, 2020 at 08:47:39AM -0700, Jens Axboe wrote:
> This adds support for doing madvise(2) through io_uring. We assume that
> any operation can block, and hence punt everything async. This could be
> improved, but hard to make bullet proof. The async punt ensures it's
> safe.
> Signed-off-by: Jens Axboe <>

How capability checks work with io_uring?

MADV_HWPOISON requires CAP_SYS_ADMIN and I just want to make sure it will
not open a way around.

 Kirill A. Shutemov

  reply index

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-10 15:47 [PATCHSET 0/3] io_uring: add support for madvise/fadvise Jens Axboe
2020-01-10 15:47 ` [PATCH 1/3] io_uring: add IORING_OP_FADVISE Jens Axboe
2020-01-10 15:47 ` [PATCH 2/3] mm: make do_madvise() available internally Jens Axboe
2020-01-10 15:47 ` [PATCH 3/3] io_uring: add IORING_OP_MADVISE Jens Axboe
2020-01-11 23:10   ` Kirill A. Shutemov [this message]
2020-01-12  2:16     ` Jens Axboe
2020-01-12 21:39   ` Pavel Begunkov
2020-01-13 16:58     ` Jens Axboe

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