diff options
| author | Kirill A. Shutemov <kirill.shutemov@linux.intel.com> | 2014-08-07 01:08:07 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-08-07 03:01:22 +0200 |
| commit | 3a91053aebb23205caf67927be00c54cef6424b3 (patch) | |
| tree | 5ad698d735a0513f1a3e918a4696a5931cafdd55 | |
| parent | mm: close race between do_fault_around() and fault_around_bytes_set() (diff) | |
| download | linux-3a91053aebb23205caf67927be00c54cef6424b3.tar.xz linux-3a91053aebb23205caf67927be00c54cef6424b3.zip | |
mm: mark fault_around_bytes __read_mostly
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>
Suggested-by: David Rientjes <rientjes@google.com>
Acked-by: David Rientjes <rientjes@google.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Andrey Ryabinin <a.ryabinin@samsung.com>
Cc: Sasha Levin <sasha.levin@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | mm/memory.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/mm/memory.c b/mm/memory.c index dc47261c4686..5596d77e8656 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -2766,7 +2766,8 @@ 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); #ifdef CONFIG_DEBUG_FS static int fault_around_bytes_get(void *data, u64 *val) |