fault_around_bytes can only be changed via debugfs. Let's mark it
read-mostly.
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
---
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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