From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Dave Hansen <dave.hansen@intel.com>,
Andrey Ryabinin <a.ryabinin@samsung.com>,
Sasha Levin <sasha.levin@oracle.com>,
David Rientjes <rientjes@google.com>,
linux-mm@kvack.org,
"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Subject: [PATCH 2/2] mm: mark fault_around_bytes __read_mostly
Date: Tue, 29 Jul 2014 14:33:29 +0300 [thread overview]
Message-ID: <1406633609-17586-3-git-send-email-kirill.shutemov@linux.intel.com> (raw)
In-Reply-To: <1406633609-17586-1-git-send-email-kirill.shutemov@linux.intel.com>
fault_around_bytes can only be changed via debugfs. Let's mark it
read-mostly.
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
---
mm/memory.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/mm/memory.c b/mm/memory.c
index 2ce07dc9b52b..ed3073d6a0e0 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -2768,7 +2768,8 @@ void do_set_pte(struct vm_area_struct *vma, unsigned long address,
update_mmu_cache(vma, address, pte);
}
-static unsigned long fault_around_bytes = rounddown_pow_of_two(65536);
+static unsigned long fault_around_bytes __read_mostly =
+ rounddown_pow_of_two(65536);
static inline unsigned long fault_around_pages(void)
{
--
2.0.1
--
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next prev parent reply other threads:[~2014-07-29 11:33 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-29 11:33 [PATCH 0/2] faultaround updates Kirill A. Shutemov
2014-07-29 11:33 ` [PATCH 1/2] mm: close race between do_fault_around() and fault_around_bytes_set() Kirill A. Shutemov
2014-07-29 13:32 ` Andrey Ryabinin
2014-07-29 14:27 ` Kirill A. Shutemov
2014-07-29 17:07 ` Andrey Ryabinin
2014-07-29 22:36 ` David Rientjes
2014-07-29 23:16 ` Kirill A. Shutemov
2014-07-29 11:33 ` Kirill A. Shutemov [this message]
2014-07-29 22:38 ` [PATCH 2/2] mm: mark fault_around_bytes __read_mostly David Rientjes
-- strict thread matches above, loose matches on Subject: below --
2014-08-01 11:51 [PATCH 0/2] faultaround updates Kirill A. Shutemov
2014-08-01 11:51 ` [PATCH 2/2] mm: mark fault_around_bytes __read_mostly Kirill A. Shutemov
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