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From: Johannes Weiner <hannes@cmpxchg.org>
To: Minchan Kim <minchan@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	linux-kernel@vger.kernel.org, shli@fb.com,
	hillf.zj@alibaba-inc.com, hughd@google.com,
	mgorman@techsingularity.net, mhocko@suse.com, riel@redhat.com,
	mm-commits@vger.kernel.org
Subject: Re: + mm-reclaim-madv_free-pages.patch added to -mm tree
Date: Tue, 7 Mar 2017 11:59:22 -0500	[thread overview]
Message-ID: <20170307165922.GB21425@cmpxchg.org> (raw)
In-Reply-To: <20170307055551.GC29458@bbox>

On Tue, Mar 07, 2017 at 02:55:51PM +0900, Minchan Kim wrote:
> From d42d296950c3bbce74afddcff307fa18eef305fe Mon Sep 17 00:00:00 2001
> From: Minchan Kim <minchan@kernel.org>
> Date: Tue, 7 Mar 2017 14:48:37 +0900
> Subject: [PATCH] mm: fix lazyfree bug on check in try_to_unmap_one
> 
> If a page is swapbacked, it means it should be in swapcache
> in try_to_unmap_one's path.
> 
> If a page is !swapbacked, it mean it shouldn't be in swapcache
> in try_to_unmap_one's path.
> 
> Check both two cases all at once and if it fails, warn and
> return SWAP_FAIL. Such bug never mean we should shut down
> the kernel.
> 
> Suggested-by: Johannes Weiner <hannes@cmpxchg.org>
> Signed-off-by: Minchan Kim <minchan@kernel.org>

Acked-by: Johannes Weiner <hannes@cmpxchg.org>

Thanks Minchan

  parent reply	other threads:[~2017-03-07 19:25 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <58b616a6.hCl1D/BVn0fPDi+K%akpm@linux-foundation.org>
2017-03-03  2:52 ` Minchan Kim
2017-03-03 15:18   ` Johannes Weiner
2017-03-06  3:03     ` Minchan Kim
2017-03-06 15:49       ` Johannes Weiner
2017-03-07  5:46         ` Minchan Kim
2017-03-07  5:55         ` Minchan Kim
2017-03-07  9:58           ` Michal Hocko
2017-03-07 16:59           ` Johannes Weiner [this message]
2017-03-03 16:02   ` Shaohua Li

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