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authorWang, Yalin <Yalin.Wang@sonymobile.com>2015-02-11 23:24:51 (GMT)
committerLinus Torvalds <torvalds@linux-foundation.org>2015-02-12 01:06:00 (GMT)
commit56873f43abdcd574b25105867a990f067747b2f4 (patch)
treebe55c69ee61da7b4e10e46c89e62a2ca68adaf81 /tools
parent1d148e218a0d0566b1c06f2f45f1436d53b049b2 (diff)
mm:add KPF_ZERO_PAGE flag for /proc/kpageflags
Add KPF_ZERO_PAGE flag for zero_page, so that userspace processes can detect zero_page in /proc/kpageflags, and then do memory analysis more accurately. Signed-off-by: Yalin Wang <yalin.wang@sonymobile.com> Acked-by: Kirill A. Shutemov <kirill@shutemov.name> Cc: Konstantin Khlebnikov <koct9i@gmail.com> Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'tools')
-rw-r--r--tools/vm/page-types.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/vm/page-types.c b/tools/vm/page-types.c
index 264fbc2..8bdf16b 100644
--- a/tools/vm/page-types.c
+++ b/tools/vm/page-types.c
@@ -133,6 +133,7 @@ static const char * const page_flag_names[] = {
[KPF_KSM] = "x:ksm",
[KPF_THP] = "t:thp",
[KPF_BALLOON] = "o:balloon",
+ [KPF_ZERO_PAGE] = "z:zero_page",
[KPF_RESERVED] = "r:reserved",
[KPF_MLOCKED] = "m:mlocked",

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