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mm/balloon_compaction: make balloon page compaction callbacks static 

Since commit b1123ea6d3 ("mm: balloon: use general non-lru movable page
feature"), these functions are called via balloon_aops callbacks. They're
not called directly outside this file. So make them static and clean up
the relevant code.

Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Link: https://lore.kernel.org/r/20220125132221.2220-1-linmiaohe@huawei.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
This commit is contained in:
Miaohe Lin 2022-01-25 21:22:21 +08:00 committed by Michael S. Tsirkin
parent 6f84622db3
commit 504c1cabe3
2 changed files with 3 additions and 25 deletions
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22
include/linux/balloon_compaction.h
View File

@ -80,12 +80,6 @@ static inline void balloon_devinfo_init(struct balloon_dev_info *balloon)
#ifdef CONFIG_BALLOON_COMPACTION
extern const struct address_space_operations balloon_aops;
extern bool balloon_page_isolate(struct page *page,
isolate_mode_t mode);
extern void balloon_page_putback(struct page *page);
extern int balloon_page_migrate(struct address_space *mapping,
struct page *newpage,
struct page *page, enum migrate_mode mode);
/*
* balloon_page_insert - insert a page into the balloon's page list and make
@ -155,22 +149,6 @@ static inline void balloon_page_delete(struct page *page)
list_del(&page->lru);
}
static inline bool balloon_page_isolate(struct page *page)
{
return false;
}
static inline void balloon_page_putback(struct page *page)
{
return;
}
static inline int balloon_page_migrate(struct page *newpage,
struct page *page, enum migrate_mode mode)
{
return 0;
}
static inline gfp_t balloon_mapping_gfp_mask(void)
{
return GFP_HIGHUSER;

6
mm/balloon_compaction.c
View File

@ -203,7 +203,7 @@ EXPORT_SYMBOL_GPL(balloon_page_dequeue);
#ifdef CONFIG_BALLOON_COMPACTION
bool balloon_page_isolate(struct page *page, isolate_mode_t mode)
static bool balloon_page_isolate(struct page *page, isolate_mode_t mode)
{
struct balloon_dev_info *b_dev_info = balloon_page_device(page);
@ -217,7 +217,7 @@ bool balloon_page_isolate(struct page *page, isolate_mode_t mode)
return true;
}
void balloon_page_putback(struct page *page)
static void balloon_page_putback(struct page *page)
{
struct balloon_dev_info *b_dev_info = balloon_page_device(page);
unsigned long flags;
@ -230,7 +230,7 @@ void balloon_page_putback(struct page *page)
/* move_to_new_page() counterpart for a ballooned page */
int balloon_page_migrate(struct address_space *mapping,
static int balloon_page_migrate(struct address_space *mapping,
struct page *newpage, struct page *page,
enum migrate_mode mode)
{