The patch titled
Subject: mm/damon/vaddr: constify static mm_walk_ops
has been added to the -mm tree. Its filename is
mm-damon-vaddr-constify-static-mm_walk_ops.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/mm-damon-vaddr-constify-static-mm_walk_ops.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/mm-damon-vaddr-constify-static-mm_walk_ops.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Rikard Falkeborn <rikard.falkeborn@xxxxxxxxx>
Subject: mm/damon/vaddr: constify static mm_walk_ops
The only usage of these structs is to pass their addresses to
walk_page_range(), which takes a pointer to const mm_walk_ops as argument.
Make them const to allow the compiler to put them in read-only memory.
Link: https://lkml.kernel.org/r/20211014075042.17174-2-rikard.falkeborn@xxxxxxxxx
Signed-off-by: Rikard Falkeborn <rikard.falkeborn@xxxxxxxxx>
Reviewed-by: SeongJae Park <sj@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/damon/vaddr.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/mm/damon/vaddr.c~mm-damon-vaddr-constify-static-mm_walk_ops
+++ a/mm/damon/vaddr.c
@@ -394,7 +394,7 @@ out:
return 0;
}
-static struct mm_walk_ops damon_mkold_ops = {
+static const struct mm_walk_ops damon_mkold_ops = {
.pmd_entry = damon_mkold_pmd_entry,
};
@@ -490,7 +490,7 @@ out:
return 0;
}
-static struct mm_walk_ops damon_young_ops = {
+static const struct mm_walk_ops damon_young_ops = {
.pmd_entry = damon_young_pmd_entry,
};
_
Patches currently in -mm which might be from rikard.falkeborn@xxxxxxxxx are
mm-memory_failure-constify-static-mm_walk_ops.patch
mm-damon-vaddr-constify-static-mm_walk_ops.patch
const_structscheckpatch-add-a-few-sound-ops-structs.patch
