]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commitdiff
mm/memory_failure: constify static mm_walk_ops
authorRikard Falkeborn <rikard.falkeborn@gmail.com>
Fri, 5 Nov 2021 20:41:01 +0000 (13:41 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Sat, 6 Nov 2021 20:30:38 +0000 (13:30 -0700)
The only usage of hwp_walk_ops is to pass its address to
walk_page_range() which takes a pointer to const mm_walk_ops as
argument.

Make it const to allow the compiler to put it in read-only memory.

Link: https://lkml.kernel.org/r/20211014075042.17174-3-rikard.falkeborn@gmail.com
Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Acked-by: Naoya Horiguchi <naoya.horiguchi@nec.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mm/memory-failure.c

index 8376cfe0efce70df2bd085f14e749f4e9fc9cbc2..54a5d28ea60171c1dd48fdd7c585383b902f7e77 100644 (file)
@@ -674,7 +674,7 @@ static int hwpoison_hugetlb_range(pte_t *ptep, unsigned long hmask,
 #define hwpoison_hugetlb_range NULL
 #endif
 
-static struct mm_walk_ops hwp_walk_ops = {
+static const struct mm_walk_ops hwp_walk_ops = {
        .pmd_entry = hwpoison_pte_range,
        .hugetlb_entry = hwpoison_hugetlb_range,
 };