linux-kernel - Re: [PATCH AUTOSEL 5.0 59/66] fs: stream_open - opener for stream-like files so that read and write can run simultaneously without deadlock

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Message-ID: <20190424171926.GA17719@sasha-vm>
Date:   Wed, 24 Apr 2019 13:19:26 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Linux List Kernel Mailing <linux-kernel@...r.kernel.org>,
        stable <stable@...r.kernel.org>,
        Kirill Smelkov <kirr@...edi.com>,
        Michael Kerrisk <mtk.manpages@...il.com>,
        Yongzhi Pan <panyongzhi@...il.com>,
        Jonathan Corbet <corbet@....net>,
        David Vrabel <david.vrabel@...rix.com>,
        Juergen Gross <jgross@...e.com>,
        Miklos Szeredi <miklos@...redi.hu>, Tejun Heo <tj@...nel.org>,
        Kirill Tkhai <ktkhai@...tuozzo.com>,
        Arnd Bergmann <arnd@...db.de>, Christoph Hellwig <hch@....de>,
        Julia Lawall <Julia.Lawall@...6.fr>,
        Nikolaus Rath <Nikolaus@...h.org>,
        Han-Wen Nienhuys <hanwen@...gle.com>,
        linux-fsdevel <linux-fsdevel@...r.kernel.org>
Subject: Re: [PATCH AUTOSEL 5.0 59/66] fs: stream_open - opener for
 stream-like files so that read and write can run simultaneously without
 deadlock

On Wed, Apr 24, 2019 at 09:40:53AM -0700, Linus Torvalds wrote:
>On Wed, Apr 24, 2019 at 9:34 AM Greg Kroah-Hartman
><gregkh@...uxfoundation.org> wrote:
>>
>> I think there is a follow-on patch for this one as well, that adds the
>> proper "stream open" logic to all of the individual locations.
>
>That bulk one hasn't been applied yet, and wouldn't be appropriate for
>stable anyway. It's 5.2 material.

Hm, I might be confusing something here but I see a bunch of patches
that convert existing callers mentioned in this patch to use
stream_open() which was introduced here.

Are these the same patches you're referring to? If so, why are they not
appropriate for stable?

--
Thanks,
Sasha