mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git
synced 2026-10-31 22:34:33 +01:00
Naoya Horiguchi
e873c49fbf
This flag shows that a given page is a subpage of a transparent hugepage. It helps us debug and test the kernel by showing physical address of thp. Signed-off-by: Naoya Horiguchi <[email protected]> Reviewed-by: Wu Fengguang <[email protected]> Reviewed-by: KAMEZAWA Hiroyuki <[email protected]> Acked-by: KOSAKI Motohiro <[email protected]> Cc: David Rientjes <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Andrea Arcangeli <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
48 lines
1.0 KiB
C
48 lines
1.0 KiB
C
#ifndef LINUX_KERNEL_PAGE_FLAGS_H
|
|
#define LINUX_KERNEL_PAGE_FLAGS_H
|
|
|
|
/*
|
|
* Stable page flag bits exported to user space
|
|
*/
|
|
|
|
#define KPF_LOCKED 0
|
|
#define KPF_ERROR 1
|
|
#define KPF_REFERENCED 2
|
|
#define KPF_UPTODATE 3
|
|
#define KPF_DIRTY 4
|
|
#define KPF_LRU 5
|
|
#define KPF_ACTIVE 6
|
|
#define KPF_SLAB 7
|
|
#define KPF_WRITEBACK 8
|
|
#define KPF_RECLAIM 9
|
|
#define KPF_BUDDY 10
|
|
|
|
/* 11-20: new additions in 2.6.31 */
|
|
#define KPF_MMAP 11
|
|
#define KPF_ANON 12
|
|
#define KPF_SWAPCACHE 13
|
|
#define KPF_SWAPBACKED 14
|
|
#define KPF_COMPOUND_HEAD 15
|
|
#define KPF_COMPOUND_TAIL 16
|
|
#define KPF_HUGE 17
|
|
#define KPF_UNEVICTABLE 18
|
|
#define KPF_HWPOISON 19
|
|
#define KPF_NOPAGE 20
|
|
|
|
#define KPF_KSM 21
|
|
#define KPF_THP 22
|
|
|
|
/* kernel hacking assistances
|
|
* WARNING: subject to change, never rely on them!
|
|
*/
|
|
#define KPF_RESERVED 32
|
|
#define KPF_MLOCKED 33
|
|
#define KPF_MAPPEDTODISK 34
|
|
#define KPF_PRIVATE 35
|
|
#define KPF_PRIVATE_2 36
|
|
#define KPF_OWNER_PRIVATE 37
|
|
#define KPF_ARCH 38
|
|
#define KPF_UNCACHED 39
|
|
|
|
#endif /* LINUX_KERNEL_PAGE_FLAGS_H */
|