The patch titled
Subject: mm: make some vars and functions static or __init
has been removed from the -mm tree. Its filename was
mm-make-some-vars-and-functions-static-or-__init.patch
This patch was dropped because it was merged into mainline or a subsystem tree
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From: Ting Liu <liuting.0x7c00@xxxxxxxxxxxxx>
Subject: mm: make some vars and functions static or __init
"page_idle_ops" as a global var, but its scope of use within this
document. So it should be static.
"page_ext_ops" is a var used in the kernel initial phase. And other
functions are aslo used in the kernel initial phase. So they should be
__init or __initdata to reclaim memory.
Link: https://lkml.kernel.org/r/20211217095023.67293-1-liuting.0x7c00@xxxxxxxxxxxxx
Signed-off-by: Ting Liu <liuting.0x7c00@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/page_idle.h | 1 -
mm/page_ext.c | 4 ++--
mm/page_owner.c | 4 ++--
3 files changed, 4 insertions(+), 5 deletions(-)
--- a/include/linux/page_idle.h~mm-make-some-vars-and-functions-static-or-__init
+++ a/include/linux/page_idle.h
@@ -13,7 +13,6 @@
* If there is not enough space to store Idle and Young bits in page flags, use
* page ext flags instead.
*/
-extern struct page_ext_operations page_idle_ops;
static inline bool folio_test_young(struct folio *folio)
{
--- a/mm/page_ext.c~mm-make-some-vars-and-functions-static-or-__init
+++ a/mm/page_ext.c
@@ -64,12 +64,12 @@ static bool need_page_idle(void)
{
return true;
}
-struct page_ext_operations page_idle_ops = {
+static struct page_ext_operations page_idle_ops __initdata = {
.need = need_page_idle,
};
#endif
-static struct page_ext_operations *page_ext_ops[] = {
+static struct page_ext_operations *page_ext_ops[] __initdata = {
#ifdef CONFIG_PAGE_OWNER
&page_owner_ops,
#endif
--- a/mm/page_owner.c~mm-make-some-vars-and-functions-static-or-__init
+++ a/mm/page_owner.c
@@ -46,7 +46,7 @@ static int __init early_page_owner_param
}
early_param("page_owner", early_page_owner_param);
-static bool need_page_owner(void)
+static __init bool need_page_owner(void)
{
return page_owner_enabled;
}
@@ -75,7 +75,7 @@ static noinline void register_early_stac
early_handle = create_dummy_stack();
}
-static void init_page_owner(void)
+static __init void init_page_owner(void)
{
if (!page_owner_enabled)
return;
_
Patches currently in -mm which might be from liuting.0x7c00@xxxxxxxxxxxxx are
