linux-kernel - Re: [PATCH] block: fix a crash in do_task

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Message-ID: <alpine.LSU.2.11.1907031039180.1132@eggly.anvils>
Date:   Wed, 3 Jul 2019 10:44:30 -0700 (PDT)
From:   Hugh Dickins <hughd@...gle.com>
To:     Oleg Nesterov <oleg@...hat.com>
cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Jens Axboe <axboe@...nel.dk>, Hugh Dickins <hughd@...gle.com>,
        Peter Zijlstra <peterz@...radead.org>, Qian Cai <cai@....pw>,
        hch@....de, gkohli@...eaurora.org, mingo@...hat.com,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] block: fix a crash in do_task_dead()

On Wed, 3 Jul 2019, Oleg Nesterov wrote:
> On 07/02, Andrew Morton wrote:
> > On Mon, 1 Jul 2019 08:22:32 -0600 Jens Axboe <axboe@...nel.dk> wrote:
> > 
> > > Andrew, can you queue Oleg's patch for 5.2? You can also add my:
> > > 
> > > Reviewed-by: Jens Axboe <axboe@...nel.dk>
> > 
> > Sure.  Although things are a bit of a mess.  Oleg, can we please have a
> > clean resend with signoffs and acks, etc?
> 
> OK, will do tomorrow. This cleanup can be improved, we can avoid get/put_task_struct
> altogether, but need to recheck.

Thank you, Oleg. But, with respect, I'd caution against making it cleverer
at the last minute: what you posted already is understandable, works, has
Jen's Reviewed-by and my Acked-by: it just lacks a description and signoff.

Hugh