linux-kernel - Re: [GIT PULL] 9p updates for 5.1

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Message-ID: <CAHk-=wgywWzGP-UszbL4csXpk4_h0w5PbkZYdaTpBzue82btfQ@mail.gmail.com>
Date:   Sun, 17 Mar 2019 09:15:45 -0700
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Dominique Martinet <asmadeus@...ewreck.org>
Cc:     v9fs-developer@...ts.sourceforge.net,
        Linux List Kernel Mailing <linux-kernel@...r.kernel.org>,
        Netdev <netdev@...r.kernel.org>
Subject: Re: [GIT PULL] 9p updates for 5.1

On Sun, Mar 17, 2019 at 7:25 AM Dominique Martinet
<asmadeus@...ewreck.org> wrote:
>
> Two fixes (leak on invalid mount argument and possible deadlock on
> i_size update on 32bit smp) and a fall-through warning cleanup

Hmm. I wonder what makes it valid to have concurrent updates to
i_size? Yes, yes, you added that spinlock to make the update itself
atomic on 32-bit, but it sounds a bit odd in the first place to have
two things possibly changing the size of a file at the same time...

Anyway, pulled, but just surprised...

            Linus