mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git
synced 2026-11-06 17:39:01 +01:00
Joonsoo Kim
a9627bc5e3
split_page() calls set_page_owner() to set up page_owner to each pages. But, it has a drawback that head page and the others have different stacktrace because callsite of set_page_owner() is slightly differnt. To avoid this problem, this patch copies head page's page_owner to the others. It needs to introduce new function, split_page_owner() but it also remove the other function, get_page_owner_gfp() so looks good to do. Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Joonsoo Kim <[email protected]> Acked-by: Vlastimil Babka <[email protected]> Cc: Mel Gorman <[email protected]> Cc: Minchan Kim <[email protected]> Cc: Alexander Potapenko <[email protected]> Cc: Hugh Dickins <[email protected]> Cc: Michal Hocko <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
74 lines
2.2 KiB
C
74 lines
2.2 KiB
C
#ifndef __LINUX_PAGE_OWNER_H
|
|
#define __LINUX_PAGE_OWNER_H
|
|
|
|
#include <linux/jump_label.h>
|
|
|
|
#ifdef CONFIG_PAGE_OWNER
|
|
extern struct static_key_false page_owner_inited;
|
|
extern struct page_ext_operations page_owner_ops;
|
|
|
|
extern void __reset_page_owner(struct page *page, unsigned int order);
|
|
extern void __set_page_owner(struct page *page,
|
|
unsigned int order, gfp_t gfp_mask);
|
|
extern void __split_page_owner(struct page *page, unsigned int order);
|
|
extern void __copy_page_owner(struct page *oldpage, struct page *newpage);
|
|
extern void __set_page_owner_migrate_reason(struct page *page, int reason);
|
|
extern void __dump_page_owner(struct page *page);
|
|
|
|
static inline void reset_page_owner(struct page *page, unsigned int order)
|
|
{
|
|
if (static_branch_unlikely(&page_owner_inited))
|
|
__reset_page_owner(page, order);
|
|
}
|
|
|
|
static inline void set_page_owner(struct page *page,
|
|
unsigned int order, gfp_t gfp_mask)
|
|
{
|
|
if (static_branch_unlikely(&page_owner_inited))
|
|
__set_page_owner(page, order, gfp_mask);
|
|
}
|
|
|
|
static inline void split_page_owner(struct page *page, unsigned int order)
|
|
{
|
|
if (static_branch_unlikely(&page_owner_inited))
|
|
__split_page_owner(page, order);
|
|
}
|
|
static inline void copy_page_owner(struct page *oldpage, struct page *newpage)
|
|
{
|
|
if (static_branch_unlikely(&page_owner_inited))
|
|
__copy_page_owner(oldpage, newpage);
|
|
}
|
|
static inline void set_page_owner_migrate_reason(struct page *page, int reason)
|
|
{
|
|
if (static_branch_unlikely(&page_owner_inited))
|
|
__set_page_owner_migrate_reason(page, reason);
|
|
}
|
|
static inline void dump_page_owner(struct page *page)
|
|
{
|
|
if (static_branch_unlikely(&page_owner_inited))
|
|
__dump_page_owner(page);
|
|
}
|
|
#else
|
|
static inline void reset_page_owner(struct page *page, unsigned int order)
|
|
{
|
|
}
|
|
static inline void set_page_owner(struct page *page,
|
|
unsigned int order, gfp_t gfp_mask)
|
|
{
|
|
}
|
|
static inline void split_page_owner(struct page *page,
|
|
unsigned int order)
|
|
{
|
|
}
|
|
static inline void copy_page_owner(struct page *oldpage, struct page *newpage)
|
|
{
|
|
}
|
|
static inline void set_page_owner_migrate_reason(struct page *page, int reason)
|
|
{
|
|
}
|
|
static inline void dump_page_owner(struct page *page)
|
|
{
|
|
}
|
|
#endif /* CONFIG_PAGE_OWNER */
|
|
#endif /* __LINUX_PAGE_OWNER_H */
|