The patch titled
Subject: mm: define MADV_FREE for some arches
has been added to the -mm tree. Its filename is
mm-define-madv_free-for-some-arches.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-define-madv_free-for-some-arches.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-define-madv_free-for-some-arches.patch
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------------------------------------------------------
From: Minchan Kim <minchan@xxxxxxxxxx>
Subject: mm: define MADV_FREE for some arches
Most architectures use asm-generic, but alpha, mips, parisc, xtensa
need their own definitions.
This patch defines MADV_FREE for them so it should fix build break
for their architectures.
Maybe, I should split and feed pieces to arch maintainers but
included here for mmotm convenience.
Signed-off-by: Minchan Kim <minchan@xxxxxxxxxx>
Acked-by: Max Filippov <jcmvbkbc@xxxxxxxxx>
Cc: Wu Fengguang <fengguang.wu@xxxxxxxxx>
Cc: Michael Kerrisk <mtk.manpages@xxxxxxxxx>
Cc: Richard Henderson <rth@xxxxxxxxxxx>
Cc: Ivan Kokshaysky <ink@xxxxxxxxxxxxxxxxxxxx>
Cc: "James E.J. Bottomley" <jejb@xxxxxxxxxxxxxxxx>
Cc: Helge Deller <deller@xxxxxx>
Cc: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
Cc: Chris Zankel <chris@xxxxxxxxxx>
Cc: "Kirill A. Shutemov" <kirill@xxxxxxxxxxxxx>
Cc: "Shaohua Li" <shli@xxxxxxxxxx>
Cc: <yalin.wang2010@xxxxxxxxx>
Cc: Andrea Arcangeli <aarcange@xxxxxxxxxx>
Cc: Andy Lutomirski <luto@xxxxxxxxxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
Cc: Chen Gang <gang.chen.5i5j@xxxxxxxxx>
Cc: Daniel Micay <danielmicay@xxxxxxxxx>
Cc: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
Cc: David S. Miller <davem@xxxxxxxxxxxxx>
Cc: Hugh Dickins <hughd@xxxxxxxxxx>
Cc: Jason Evans <je@xxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
Cc: Kirill A. Shutemov <kirill@xxxxxxxxxxxxx>
Cc: Matt Turner <mattst88@xxxxxxxxx>
Cc: Mel Gorman <mgorman@xxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxx>
Cc: Mika Penttil <mika.penttila@xxxxxxxxxxxx>
Cc: Rik van Riel <riel@xxxxxxxxxx>
Cc: Roland Dreier <roland@xxxxxxxxxx>
Cc: Russell King <rmk@xxxxxxxxxxxxxxxx>
Cc: Shaohua Li <shli@xxxxxxxxxx>
Cc: Will Deacon <will.deacon@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/alpha/include/uapi/asm/mman.h | 1 +
arch/mips/include/uapi/asm/mman.h | 1 +
arch/parisc/include/uapi/asm/mman.h | 1 +
arch/xtensa/include/uapi/asm/mman.h | 1 +
4 files changed, 4 insertions(+)
diff -puN arch/alpha/include/uapi/asm/mman.h~mm-define-madv_free-for-some-arches arch/alpha/include/uapi/asm/mman.h
--- a/arch/alpha/include/uapi/asm/mman.h~mm-define-madv_free-for-some-arches
+++ a/arch/alpha/include/uapi/asm/mman.h
@@ -47,6 +47,7 @@
#define MADV_WILLNEED 3 /* will need these pages */
#define MADV_SPACEAVAIL 5 /* ensure resources are available */
#define MADV_DONTNEED 6 /* don't need these pages */
+#define MADV_FREE 7 /* free pages only if memory pressure */
/* common/generic parameters */
#define MADV_REMOVE 9 /* remove these pages & resources */
diff -puN arch/mips/include/uapi/asm/mman.h~mm-define-madv_free-for-some-arches arch/mips/include/uapi/asm/mman.h
--- a/arch/mips/include/uapi/asm/mman.h~mm-define-madv_free-for-some-arches
+++ a/arch/mips/include/uapi/asm/mman.h
@@ -73,6 +73,7 @@
#define MADV_SEQUENTIAL 2 /* expect sequential page references */
#define MADV_WILLNEED 3 /* will need these pages */
#define MADV_DONTNEED 4 /* don't need these pages */
+#define MADV_FREE 5 /* free pages only if memory pressure */
/* common parameters: try to keep these consistent across architectures */
#define MADV_REMOVE 9 /* remove these pages & resources */
diff -puN arch/parisc/include/uapi/asm/mman.h~mm-define-madv_free-for-some-arches arch/parisc/include/uapi/asm/mman.h
--- a/arch/parisc/include/uapi/asm/mman.h~mm-define-madv_free-for-some-arches
+++ a/arch/parisc/include/uapi/asm/mman.h
@@ -43,6 +43,7 @@
#define MADV_SPACEAVAIL 5 /* insure that resources are reserved */
#define MADV_VPS_PURGE 6 /* Purge pages from VM page cache */
#define MADV_VPS_INHERIT 7 /* Inherit parents page size */
+#define MADV_FREE 8 /* free pages only if memory pressure */
/* common/generic parameters */
#define MADV_REMOVE 9 /* remove these pages & resources */
diff -puN arch/xtensa/include/uapi/asm/mman.h~mm-define-madv_free-for-some-arches arch/xtensa/include/uapi/asm/mman.h
--- a/arch/xtensa/include/uapi/asm/mman.h~mm-define-madv_free-for-some-arches
+++ a/arch/xtensa/include/uapi/asm/mman.h
@@ -86,6 +86,7 @@
#define MADV_SEQUENTIAL 2 /* expect sequential page references */
#define MADV_WILLNEED 3 /* will need these pages */
#define MADV_DONTNEED 4 /* don't need these pages */
+#define MADV_FREE 5 /* free pages only if memory pressure */
/* common parameters: try to keep these consistent across architectures */
#define MADV_REMOVE 9 /* remove these pages & resources */
_
Patches currently in -mm which might be from minchan@xxxxxxxxxx are
zram-pass-gfp-from-zcomp-frontend-to-backend.patch
mm-support-madvisemadv_free.patch
mm-support-madvisemadv_free-fix.patch
mm-define-madv_free-for-some-arches.patch
mm-free-swp_entry-in-madvise_free.patch
mm-move-lazily-freed-pages-to-inactive-list.patch
mm-mark-stable-page-dirty-in-ksm.patch
x86-add-pmd_-for-thp.patch
sparc-add-pmd_-for-thp.patch
powerpc-add-pmd_-for-thp.patch
arm-add-pmd_mkclean-for-thp.patch
arm64-add-pmd_mkclean-for-thp.patch
mm-dont-split-thp-page-when-syscall-is-called.patch
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