mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-28 11:18:45 +07:00
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 <n-horiguchi@ah.jp.nec.com> Reviewed-by: Wu Fengguang <fengguang.wu@intel.com> Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: David Rientjes <rientjes@google.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Andrea Arcangeli <aarcange@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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 */
|