From: Vlastimil Babka <vbabka@suse.cz>
To: Andrew Morton <akpm@linux-foundation.org>,
Sasha Levin <sasha.levin@oracle.com>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Mel Gorman <mgorman@suse.de>, Rik van Riel <riel@redhat.com>,
joern@logfs.org, Michel Lespinasse <walken@google.com>,
Vlastimil Babka <vbabka@suse.cz>
Subject: [PATCH 0/3] Fix bugs in munlock
Date: Mon, 16 Dec 2013 11:14:13 +0100 [thread overview]
Message-ID: <1387188856-21027-1-git-send-email-vbabka@suse.cz> (raw)
In-Reply-To: <52AE07B4.4020203@oracle.com>
This patch mini-series is a result of Sasha Levin's bug reports via trinity.
First two patches are quite straightforward fixes for bugs introduced in 3.12,
and earlier versions have been tested. Sasha, can you please test the final
versions of the first two (together) again? The first one added an extra
VM_BUG_ON.
The third is based on me noticing there might still be an (older than 3.12)
race with a THP page split with non-fatal but still bad consequences, such as
pages being kept mlocked. Since this is quite rare and was not reported, any
review agreeing that it can really happen would be great. Testing as well, of
course. So it's kind of RFC at this point.
Vlastimil Babka (3):
mm: munlock: fix a bug where THP tail page is encountered
mm: munlock: fix deadlock in __munlock_pagevec()
mm: munlock: fix potential race with THP page split
mm/mlock.c | 116 ++++++++++++++++++++++++++++++++++++++++---------------------
1 file changed, 76 insertions(+), 40 deletions(-)
--
1.8.4
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next prev parent reply other threads:[~2013-12-16 10:14 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-08 1:52 kernel BUG in munlock_vma_pages_range Sasha Levin
2013-12-09 9:34 ` Vlastimil Babka
2013-12-09 17:05 ` Sasha Levin
2013-12-09 17:12 ` Vlastimil Babka
2013-12-09 17:15 ` Sasha Levin
2013-12-09 20:26 ` Sasha Levin
2013-12-11 22:59 ` Vlastimil Babka
2013-12-12 3:16 ` Sasha Levin
2013-12-12 5:03 ` Bob Liu
2013-12-12 12:41 ` Vlastimil Babka
2013-12-12 21:05 ` Sasha Levin
2013-12-13 8:49 ` Bob Liu
2013-12-13 9:08 ` Vlastimil Babka
2013-12-15 19:49 ` Sasha Levin
2013-12-16 10:14 ` Vlastimil Babka [this message]
2013-12-16 10:14 ` [PATCH 1/3] mm: munlock: fix a bug where THP tail page is encountered Vlastimil Babka
2013-12-17 1:26 ` Bob Liu
2013-12-17 13:00 ` Vlastimil Babka
2013-12-18 0:48 ` Bob Liu
2014-03-14 23:55 ` Sasha Levin
2014-03-15 3:06 ` Sasha Levin
2014-03-17 12:38 ` Vlastimil Babka
2014-03-17 21:08 ` Sasha Levin
2014-03-17 22:20 ` Vlastimil Babka
2014-03-17 22:58 ` Sasha Levin
2014-03-17 23:30 ` Vlastimil Babka
2014-03-18 10:41 ` Vlastimil Babka
2013-12-16 10:14 ` [PATCH 2/3] mm: munlock: fix deadlock in __munlock_pagevec() Vlastimil Babka
2013-12-17 0:31 ` Andrew Morton
2013-12-17 13:08 ` Vlastimil Babka
2013-12-16 10:14 ` [RFC PATCH 3/3] mm: munlock: fix potential race with THP page split Vlastimil Babka
2014-03-21 1:53 ` kernel BUG in munlock_vma_pages_range Sasha Levin
2014-03-21 9:02 ` Vlastimil Babka
2013-12-09 21:16 ` Jiri Kosina
2013-12-11 15:55 ` Sasha Levin
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