linux-kernel - Re: [PATCH v6 1/8] lib/ref_tracker: add unlocked leak print helper

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Message-ID: <ZCQwlAkAUrtCimj4@ashyti-mobl2.lan>
Date:   Wed, 29 Mar 2023 14:35:32 +0200
From:   Andi Shyti <andi.shyti@...ux.intel.com>
To:     Andrzej Hajda <andrzej.hajda@...el.com>
Cc:     Jani Nikula <jani.nikula@...ux.intel.com>,
        Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
        Rodrigo Vivi <rodrigo.vivi@...el.com>,
        Tvrtko Ursulin <tvrtko.ursulin@...ux.intel.com>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>, linux-kernel@...r.kernel.org,
        intel-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        Chris Wilson <chris@...is-wilson.co.uk>,
        netdev@...r.kernel.org, Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        "David S. Miller" <davem@...emloft.net>,
        Andi Shyti <andi.shyti@...ux.intel.com>
Subject: Re: [PATCH v6 1/8] lib/ref_tracker: add unlocked leak print helper

Hi Andrzej,

On Wed, Mar 29, 2023 at 09:24:12AM +0200, Andrzej Hajda wrote:
> To have reliable detection of leaks, caller must be able to check under the same
> lock both: tracked counter and the leaks. dir.lock is natural candidate for such
> lock and unlocked print helper can be called with this lock taken.
> As a bonus we can reuse this helper in ref_tracker_dir_exit.
> 
> Signed-off-by: Andrzej Hajda <andrzej.hajda@...el.com>

Reviewed-by: Andi Shyti <andi.shyti@...ux.intel.com> 

Thanks,
Andi