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Message-ID: <CAHk-=wh=5kDGukMs2sVZ8uHZJX4VL13oD5+xMAR4HvuY6QckLg@mail.gmail.com>
Date: Tue, 5 Jan 2021 11:53:48 -0800
From: Linus Torvalds <torvalds@...ux-foundation.org>
To: Hugh Dickins <hughd@...gle.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>,
Matthew Wilcox <willy@...radead.org>,
syzbot <syzbot+2fc0712f8f8b8b8fa0ef@...kaller.appspotmail.com>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
Linux-MM <linux-mm@...ck.org>,
syzkaller-bugs <syzkaller-bugs@...glegroups.com>
Subject: Re: kernel BUG at mm/page-writeback.c:LINE!
On Tue, Jan 5, 2021 at 11:31 AM Linus Torvalds
<torvalds@...ux-foundation.org> wrote:
>
> On Mon, Jan 4, 2021 at 7:29 PM Hugh Dickins <hughd@...gle.com> wrote:
> >
> > > So the one-liner of changing the "if" to "while" in
> > > wait_on_page_writeback() should get us back to what we used to do.
> >
> > I think that is the realistic way to go.
>
> Yeah, that's what I'll do.
I took your "way to go" statement as an ack, and made it all be commit
c2407cf7d22d ("mm: make wait_on_page_writeback() wait for multiple
pending writebacks").
Linus
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