linux-kernel - Re: [v7 PATCH 01/12] mm: vmscan: use nid from shrink

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CAHbLzkqCPSh6LAepBrWm5f=21aM8f-cKsCC-Oq6iGiwP4LscbA@mail.gmail.com>
Date:   Wed, 10 Feb 2021 08:58:52 -0800
From:   Yang Shi <shy828301@...il.com>
To:     Shakeel Butt <shakeelb@...gle.com>
Cc:     Roman Gushchin <guro@...com>, Kirill Tkhai <ktkhai@...tuozzo.com>,
        Vlastimil Babka <vbabka@...e.cz>,
        Dave Chinner <david@...morbit.com>,
        Johannes Weiner <hannes@...xchg.org>,
        Michal Hocko <mhocko@...e.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Linux MM <linux-mm@...ck.org>,
        linux-fsdevel <linux-fsdevel@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [v7 PATCH 01/12] mm: vmscan: use nid from shrink_control for tracepoint

On Tue, Feb 9, 2021 at 11:14 AM Shakeel Butt <shakeelb@...gle.com> wrote:
>
> On Tue, Feb 9, 2021 at 9:47 AM Yang Shi <shy828301@...il.com> wrote:
> >
> > The tracepoint's nid should show what node the shrink happens on, the start tracepoint
> > uses nid from shrinkctl, but the nid might be set to 0 before end tracepoint if the
> > shrinker is not NUMA aware, so the traceing
>
> tracing

Fixed. Thanks.

>
> > log may show the shrink happens on one
> > node but end up on the other node.  It seems confusing.  And the following patch
> > will remove using nid directly in do_shrink_slab(), this patch also helps cleanup
> > the code.
> >
> > Acked-by: Vlastimil Babka <vbabka@...e.cz>
> > Acked-by: Kirill Tkhai <ktkhai@...tuozzo.com>
> > Signed-off-by: Yang Shi <shy828301@...il.com>
>
> Reviewed-by: Shakeel Butt <shakeelb@...gle.com>