linux-kernel - Re: [PATCH v8 4/4] mm/madvise: check fatal signal pending of target process

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Message-ID: <alpine.DEB.2.22.394.2006241259530.35388@chino.kir.corp.google.com>
Date:   Wed, 24 Jun 2020 13:00:04 -0700 (PDT)
From:   David Rientjes <rientjes@...gle.com>
To:     Minchan Kim <minchan@...nel.org>
cc:     Andrew Morton <akpm@...ux-foundation.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Christian Brauner <christian.brauner@...ntu.com>,
        linux-mm <linux-mm@...ck.org>, linux-api@...r.kernel.org,
        oleksandr@...hat.com, Suren Baghdasaryan <surenb@...gle.com>,
        Tim Murray <timmurray@...gle.com>,
        Sandeep Patil <sspatil@...gle.com>,
        Sonny Rao <sonnyrao@...gle.com>,
        Brian Geffon <bgeffon@...gle.com>,
        Michal Hocko <mhocko@...e.com>,
        Johannes Weiner <hannes@...xchg.org>,
        Shakeel Butt <shakeelb@...gle.com>,
        John Dias <joaodias@...gle.com>,
        Joel Fernandes <joel@...lfernandes.org>,
        Jann Horn <jannh@...gle.com>,
        alexander.h.duyck@...ux.intel.com, sj38.park@...il.com,
        Arjun Roy <arjunroy@...gle.com>,
        Vlastimil Babka <vbabka@...e.cz>,
        Christian Brauner <christian@...uner.io>,
        Daniel Colascione <dancol@...gle.com>,
        Jens Axboe <axboe@...nel.dk>,
        Kirill Tkhai <ktkhai@...tuozzo.com>,
        SeongJae Park <sjpark@...zon.de>, linux-man@...r.kernel.org
Subject: Re: [PATCH v8 4/4] mm/madvise: check fatal signal pending of target
 process

On Mon, 22 Jun 2020, Minchan Kim wrote:

> Bail out to prevent unnecessary CPU overhead if target process has pending
> fatal signal during (MADV_COLD|MADV_PAGEOUT) operation.
> 
> Link: http://lkml.kernel.org/r/20200302193630.68771-4-minchan@kernel.org
> Signed-off-by: Minchan Kim <minchan@...nel.org>
> Reviewed-by: Suren Baghdasaryan <surenb@...gle.com>
> Reviewed-by: Vlastimil Babka <vbabka@...e.cz>
> Cc: Alexander Duyck <alexander.h.duyck@...ux.intel.com>
> Cc: Brian Geffon <bgeffon@...gle.com>
> Cc: Christian Brauner <christian@...uner.io>
> Cc: Daniel Colascione <dancol@...gle.com>
> Cc: Jann Horn <jannh@...gle.com>
> Cc: Jens Axboe <axboe@...nel.dk>
> Cc: Joel Fernandes <joel@...lfernandes.org>
> Cc: Johannes Weiner <hannes@...xchg.org>
> Cc: John Dias <joaodias@...gle.com>
> Cc: Kirill Tkhai <ktkhai@...tuozzo.com>
> Cc: Michal Hocko <mhocko@...e.com>
> Cc: Oleksandr Natalenko <oleksandr@...hat.com>
> Cc: Sandeep Patil <sspatil@...gle.com>
> Cc: SeongJae Park <sj38.park@...il.com>
> Cc: SeongJae Park <sjpark@...zon.de>
> Cc: Shakeel Butt <shakeelb@...gle.com>
> Cc: Sonny Rao <sonnyrao@...gle.com>
> Cc: Tim Murray <timmurray@...gle.com>
> Cc: Christian Brauner <christian.brauner@...ntu.com>
> Cc: <linux-man@...r.kernel.org>

Acked-by: David Rientjes <rientjes@...gle.com>