From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
To: Jiri Slaby <jslaby@suse.cz>
Cc: linux-mm@kvack.org, LKML <linux-kernel@vger.kernel.org>,
David Rientjes <rientjes@google.com>, Bob Liu <lliubbo@gmail.com>,
Andrew Morton <akpm@linux-foundation.org>,
Andrea Arcangeli <aarcange@redhat.com>,
"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Subject: [PATCH 1/2] thp: fix anononymous page accounting in fallback path for COW of HZP
Date: Fri, 30 Nov 2012 17:03:40 +0200 [thread overview]
Message-ID: <1354287821-5925-2-git-send-email-kirill.shutemov@linux.intel.com> (raw)
In-Reply-To: <1354287821-5925-1-git-send-email-kirill.shutemov@linux.intel.com>
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Don't forget to account newly allocated page in fallback path for
copy-on-write of huge zero page.
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
---
mm/huge_memory.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 57f0024..9d6f521 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1164,6 +1164,7 @@ static int do_huge_pmd_wp_zero_page_fallback(struct mm_struct *mm,
pmd_populate(mm, pmd, pgtable);
spin_unlock(&mm->page_table_lock);
put_huge_zero_page();
+ inc_mm_counter(mm, MM_ANONPAGES);
mmu_notifier_invalidate_range_end(mm, mmun_start, mmun_end);
--
1.7.11.7
--
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next prev parent reply other threads:[~2012-11-30 15:02 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-27 21:18 kernel BUG at mm/huge_memory.c:212! Jiri Slaby
2012-11-27 23:47 ` David Rientjes
2012-11-29 7:38 ` Bob Liu
2012-11-30 15:03 ` [PATCH 0/2] " Kirill A. Shutemov
2012-11-30 15:03 ` Kirill A. Shutemov [this message]
2012-12-03 3:14 ` [PATCH 1/2] thp: fix anononymous page accounting in fallback path for COW of HZP Bob Liu
2012-12-03 8:15 ` Kirill A. Shutemov
2012-11-30 15:03 ` [PATCH 2/2] thp: avoid race on multiple parallel page faults to the same page Kirill A. Shutemov
2012-12-03 2:29 ` Bob Liu
2012-12-03 13:02 ` [PATCH 0/2] kernel BUG at mm/huge_memory.c:212! Jiri Slaby
2012-12-12 5:36 ` Bob Liu
2012-12-12 10:59 ` Kirill A. Shutemov
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