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| author | Wang, Yalin | 2015-02-12 00:24:51 +0100 |
|---|---|---|
| committer | Linus Torvalds | 2015-02-12 02:06:00 +0100 |
| commit | 56873f43abdcd574b25105867a990f067747b2f4 (patch) | |
| tree | be55c69ee61da7b4e10e46c89e62a2ca68adaf81 /include/uapi/linux/kernel-page-flags.h | |
| parent | mm: add VM_BUG_ON_PAGE() to page_mapcount() (diff) | |
| download | kernel-qcow2-linux-56873f43abdcd574b25105867a990f067747b2f4.tar.gz kernel-qcow2-linux-56873f43abdcd574b25105867a990f067747b2f4.tar.xz kernel-qcow2-linux-56873f43abdcd574b25105867a990f067747b2f4.zip | |
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 'include/uapi/linux/kernel-page-flags.h')
| -rw-r--r-- | include/uapi/linux/kernel-page-flags.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/linux/kernel-page-flags.h b/include/uapi/linux/kernel-page-flags.h index 2f96d233c980..a6c4962e5d46 100644 --- a/include/uapi/linux/kernel-page-flags.h +++ b/include/uapi/linux/kernel-page-flags.h @@ -32,6 +32,7 @@ #define KPF_KSM 21 #define KPF_THP 22 #define KPF_BALLOON 23 +#define KPF_ZERO_PAGE 24 #endif /* _UAPILINUX_KERNEL_PAGE_FLAGS_H */ |