From: Pavel Tatashin <pasha.tatashin@oracle.com>
To: steven.sistare@oracle.com, daniel.m.jordan@oracle.com,
bob.picco@oracle.com, linux-kernel@vger.kernel.org,
linux-mm@kvack.org, mhocko@kernel.org,
mgorman@techsingularity.net
Subject: [v1 0/1] discard memblock data later
Date: Fri, 11 Aug 2017 17:00:17 -0400 [thread overview]
Message-ID: <1502485218-318324-1-git-send-email-pasha.tatashin@oracle.com> (raw)
This fixes a problem with use after free that can happen when there are
many physical regions and deferred pages are enabled.
Also, this fix is needed for my upcoming improvements to deferred pages:
"complete deferred page initialization", where we do not zero the backing
struct page memory.
Pavel Tatashin (1):
mm: discard memblock data later
include/linux/memblock.h | 8 +++++---
mm/memblock.c | 38 +++++++++++++++++---------------------
mm/nobootmem.c | 16 ----------------
mm/page_alloc.c | 4 ++++
4 files changed, 26 insertions(+), 40 deletions(-)
--
2.14.0
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next reply other threads:[~2017-08-11 21:00 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-11 21:00 Pavel Tatashin [this message]
2017-08-11 21:00 ` [v1 1/1] mm: discard memblock data later Pavel Tatashin
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