linux-kernel - Re: [PATCH v2 0/5] pid: add pidfd

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Date:   Mon, 1 Apr 2019 07:41:53 +0100
From:   Al Viro <viro@...iv.linux.org.uk>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     Christian Brauner <christian@...uner.io>,
        Andy Lutomirski <luto@...capital.net>,
        Daniel Colascione <dancol@...gle.com>,
        Jann Horn <jannh@...gle.com>,
        Andrew Lutomirski <luto@...nel.org>,
        David Howells <dhowells@...hat.com>,
        "Serge E. Hallyn" <serge@...lyn.com>,
        Linux API <linux-api@...r.kernel.org>,
        Linux List Kernel Mailing <linux-kernel@...r.kernel.org>,
        Arnd Bergmann <arnd@...db.de>,
        "Eric W. Biederman" <ebiederm@...ssion.com>,
        Konstantin Khlebnikov <khlebnikov@...dex-team.ru>,
        Kees Cook <keescook@...omium.org>,
        Alexey Dobriyan <adobriyan@...il.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Michael Kerrisk-manpages <mtk.manpages@...il.com>,
        Jonathan Kowalski <bl0pbl33p@...il.com>,
        "Dmitry V. Levin" <ldv@...linux.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Oleg Nesterov <oleg@...hat.com>,
        Nagarathnam Muthusamy <nagarathnam.muthusamy@...cle.com>,
        Aleksa Sarai <cyphar@...har.com>,
        Joel Fernandes <joel@...lfernandes.org>
Subject: Re: [PATCH v2 0/5] pid: add pidfd_open()

On Mon, Apr 01, 2019 at 07:37:42AM +0100, Al Viro wrote:
> On Sun, Mar 31, 2019 at 05:18:10PM -0700, Linus Torvalds wrote:
> 
> > Yeah, I would like to see the actual aio.c pull request and the
> > use-after-free fixes. All the patches look fine, I just don't have the
> > final end result..
> 
> use-after-free fixes: ceph is already in mainline, Daniel's bpf fix is in
> bpf tree (1da6c4d9140c "bpf: fix use after free in bpf_evict_inode"),
> the rest is in vfs.git#fixes.

... and aio stuff is

The following changes since commit 9e98c678c2d6ae3a17cb2de55d17f69dddaa231b:

  Linux 5.1-rc1 (2019-03-17 14:22:26 -0700)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git work.aio

for you to fetch changes up to 7316b49c2a117ca0611bc9af779d2108b764a7f9:

  aio: move sanity checks and request allocation to io_submit_one() (2019-03-17 20:52:32 -0400)

----------------------------------------------------------------
Al Viro (8):
      aio: fold lookup_kiocb() into its sole caller
      aio: keep io_event in aio_kiocb
      aio: store event at final iocb_put()
      Fix aio_poll() races
      make aio_read()/aio_write() return int
      aio: move dropping ->ki_eventfd into iocb_destroy()
      deal with get_reqs_available() in aio_get_req() itself
      aio: move sanity checks and request allocation to io_submit_one()

Linus Torvalds (1):
      pin iocb through aio.

 fs/aio.c | 338 ++++++++++++++++++++++++++++-----------------------------------
 1 file changed, 150 insertions(+), 188 deletions(-)