The patch titled Subject: pagemap: document KPF_THP and make page-types aware of it has been removed from the -mm tree. Its filename was pagemap-document-kpf_thp-and-make-page-types-aware-of-it.patch This patch was dropped because it was merged into mainline or a subsystem tree The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ From: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx> Subject: pagemap: document KPF_THP and make page-types aware of it page-types, which is a common user of pagemap, gets aware of thp with this patch. This helps system admins and kernel hackers know about how thp works. Here is a sample output of page-types over a thp: $ page-types -p <pid> --raw --list voffset offset len flags ... 7f9d40200 3f8400 1 ___U_lA____Ma_bH______t____________ 7f9d40201 3f8401 1ff ________________T_____t____________ flags page-count MB symbolic-flags long-symbolic-flags 0x0000000000410000 511 1 ________________T_____t____________ compound_tail,thp 0x000000000040d868 1 0 ___U_lA____Ma_bH______t____________ uptodate,lru,active,mmap,anonymous,swapbacked,compound_head,thp Signed-off-by: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx> Acked-by: Wu Fengguang <fengguang.wu@xxxxxxxxx> Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> Acked-by: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx> Cc: David Rientjes <rientjes@xxxxxxxxxx> Cc: Andi Kleen <andi@xxxxxxxxxxxxxx> Cc: Andrea Arcangeli <aarcange@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- Documentation/vm/page-types.c | 2 ++ Documentation/vm/pagemap.txt | 4 ++++ 2 files changed, 6 insertions(+) diff -puN Documentation/vm/page-types.c~pagemap-document-kpf_thp-and-make-page-types-aware-of-it Documentation/vm/page-types.c --- a/Documentation/vm/page-types.c~pagemap-document-kpf_thp-and-make-page-types-aware-of-it +++ a/Documentation/vm/page-types.c @@ -98,6 +98,7 @@ #define KPF_HWPOISON 19 #define KPF_NOPAGE 20 #define KPF_KSM 21 +#define KPF_THP 22 /* [32-] kernel hacking assistances */ #define KPF_RESERVED 32 @@ -147,6 +148,7 @@ static const char *page_flag_names[] = { [KPF_HWPOISON] = "X:hwpoison", [KPF_NOPAGE] = "n:nopage", [KPF_KSM] = "x:ksm", + [KPF_THP] = "t:thp", [KPF_RESERVED] = "r:reserved", [KPF_MLOCKED] = "m:mlocked", diff -puN Documentation/vm/pagemap.txt~pagemap-document-kpf_thp-and-make-page-types-aware-of-it Documentation/vm/pagemap.txt --- a/Documentation/vm/pagemap.txt~pagemap-document-kpf_thp-and-make-page-types-aware-of-it +++ a/Documentation/vm/pagemap.txt @@ -60,6 +60,7 @@ There are three components to pagemap: 19. HWPOISON 20. NOPAGE 21. KSM + 22. THP Short descriptions to the page flags: @@ -97,6 +98,9 @@ Short descriptions to the page flags: 21. KSM identical memory pages dynamically shared between one or more processes +22. THP + contiguous pages which construct transparent hugepages + [IO related page flags] 1. ERROR IO error occurred 3. UPTODATE page has up-to-date data _ Patches currently in -mm which might be from n-horiguchi@xxxxxxxxxxxxx are origin.patch linux-next.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html