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Message-Id: <1334250034-29866-1-git-send-email-will.deacon@arm.com>
Date: Thu, 12 Apr 2012 18:00:34 +0100
From: Will Deacon <will.deacon@....com>
To: hughd@...gle.com
Cc: linux-kernel@...r.kernel.org, linux-mm@...ck.org,
Will Deacon <will.deacon@....com>,
Nicolas Pitre <nico@...aro.org>
Subject: [PATCH] Revert "proc: clear_refs: do not clear reserved pages"
This reverts commit 85e72aa5384b1a614563ad63257ded0e91d1a620, which was
a quick fix suitable for -stable until ARM had been moved over to the
gate_vma mechanism:
https://lkml.org/lkml/2012/1/14/55
With commit f9d4861f ("ARM: 7294/1: vectors: use gate_vma for vectors user
mapping"), ARM does now use the gate_vma, so the PageReserved check can
be removed from the proc code.
Cc: Nicolas Pitre <nico@...aro.org>
Signed-off-by: Will Deacon <will.deacon@....com>
---
fs/proc/task_mmu.c | 3 ---
1 files changed, 0 insertions(+), 3 deletions(-)
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 2b9a760..2d60492 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -597,9 +597,6 @@ static int clear_refs_pte_range(pmd_t *pmd, unsigned long addr,
if (!page)
continue;
- if (PageReserved(page))
- continue;
-
/* Clear accessed and referenced bits. */
ptep_test_and_clear_young(vma, addr, pte);
ClearPageReferenced(page);
--
1.7.4.1
--
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