From mboxrd@z Thu Jan  1 00:00:00 1970
From: Rik van Riel <riel@redhat.com>
Subject: Re: [PATCH 1/3] fs/superblock: Unregister sb shrinker before ->kill_sb()
Date: Thu, 22 May 2014 11:52:46 -0400
Message-ID: <537E1D4E.4040407@redhat.com>
References: <1400749779-24879-1-git-send-email-mgorman@suse.de> <1400749779-24879-2-git-send-email-mgorman@suse.de>
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Cc: Johannes Weiner <hannes@cmpxchg.org>,
	Hugh Dickins <hughd@google.com>,
	Tim Chen <tim.c.chen@linux.intel.com>,
	Dave Chinner <david@fromorbit.com>,
	Yuanhan Liu <yuanhan.liu@linux.intel.com>,
	Bob Liu <bob.liu@oracle.com>, Jan Kara <jack@suse.cz>,
	Linux Kernel <linux-kernel@vger.kernel.org>,
	Linux-MM <linux-mm@kvack.org>,
	Linux-FSDevel <linux-fsdevel@vger.kernel.org>
To: Mel Gorman <mgorman@suse.de>,
	Andrew Morton <akpm@linux-foundation.org>
Return-path: <linux-kernel-owner@vger.kernel.org>
In-Reply-To: <1400749779-24879-2-git-send-email-mgorman@suse.de>
Sender: linux-kernel-owner@vger.kernel.org
List-Id: linux-fsdevel.vger.kernel.org

On 05/22/2014 05:09 AM, Mel Gorman wrote:
> From: Dave Chinner <david@fromorbit.com>
> 
> We will like to unregister the sb shrinker before ->kill_sb().
> This will allow cached objects to be counted without call to
> grab_super_passive() to update ref count on sb. We want
> to avoid locking during memory reclamation especially when
> we are skipping the memory reclaim when we are out of
> cached objects.

> Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com>
> Signed-off-by: Mel Gorman <mgorman@suse.de>

Acked-by: Rik van Riel <riel@redhat.com>

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