From: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Date: Tue, 25 Feb 2014 23:01:39 +0000 (-0800)
Subject: mm, hwpoison: release page on PageHWPoison() in __do_fault()
X-Git-Tag: submit/tizen/20160607.132125~5042^2~9
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=33b6c7765f0c20da9d61246a095acad0f98a1da5;p=sdk%2Femulator%2Femulator-kernel.git

mm, hwpoison: release page on PageHWPoison() in __do_fault()

It seems we forget to release page after detecting HW error.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Rik van Riel <riel@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Matthew Wilcox <matthew.r.wilcox@intel.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/mm/memory.c b/mm/memory.c
index be6a0c0..5f2001a 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -3348,6 +3348,7 @@ static int __do_fault(struct mm_struct *mm, struct vm_area_struct *vma,
 		if (ret & VM_FAULT_LOCKED)
 			unlock_page(vmf.page);
 		ret = VM_FAULT_HWPOISON;
+		page_cache_release(vmf.page);
 		goto uncharge_out;
 	}