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SubjectRe: [PATCH v3] writeback: safer lock nesting
On Tue 10-04-18 13:48:37, Andrew Morton wrote:
> On Tue, 10 Apr 2018 08:33:57 +0200 Michal Hocko <mhocko@kernel.org> wrote:
>
> > > Reported-by: Wang Long <wanglong19@meituan.com>
> > > Signed-off-by: Greg Thelen <gthelen@google.com>
> > > Change-Id: Ibb773e8045852978f6207074491d262f1b3fb613
> >
> > Not a stable material IMHO
>
> Why's that? Wang Long said he's observed the deadlock three times?

I thought it is just too unlikely to hit all the conditions. My fault,
I have completely missed/forgot the fact Wang Long is seeing the issue
happening.

No real objection for the stable backport from me.

--
Michal Hocko
SUSE Labs

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