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.

[[email protected]: let MADV_FREE have same value for all architectures]
Signed-off-by: Minchan Kim <[email protected]>
Acked-by: Max Filippov <[email protected]>
Cc: Wu Fengguang <[email protected]>
Cc: Michael Kerrisk <[email protected]>
Cc: Richard Henderson <[email protected]>
Cc: Ivan Kokshaysky <[email protected]>
Cc: "James E.J. Bottomley" <[email protected]>
Cc: Helge Deller <[email protected]>
Cc: Ralf Baechle <[email protected]>
Cc: Chris Zankel <[email protected]>
Cc: "Kirill A. Shutemov" <[email protected]>
Cc: Shaohua Li <[email protected]>
Cc: <[email protected]>
Cc: Andrea Arcangeli <[email protected]>
Cc: Andy Lutomirski <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Benjamin Herrenschmidt <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: Chen Gang <[email protected]>
Cc: Daniel Micay <[email protected]>
Cc: Darrick J. Wong <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: Hugh Dickins <[email protected]>
Cc: Jason Evans <[email protected]>
Cc: Johannes Weiner <[email protected]>
Cc: KOSAKI Motohiro <[email protected]>
Cc: Kirill A. Shutemov <[email protected]>
Cc: Matt Turner <[email protected]>
Cc: Mel Gorman <[email protected]>
Cc: Michal Hocko <[email protected]>
Cc: Mika Penttil <[email protected]>
Cc: Rik van Riel <[email protected]>
Cc: Roland Dreier <[email protected]>
Cc: Russell King <[email protected]>
Cc: Shaohua Li <[email protected]>
Cc: Will Deacon <[email protected]>
Signed-off-by: Chen Gang <[email protected]>
Acked-by: Hugh Dickins <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

diff --git a/arch/alpha/include/uapi/asm/mman.h b/arch/alpha/include/uapi/asm/mman.h
index f2f9496717981766aa0ac53ef5054a9250dd1218..d828beb5e69b0a040d1012354bc6c89446bcb35c 100644 (file)
--- a/arch/alpha/include/uapi/asm/mman.h
+++ b/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 --git a/arch/mips/include/uapi/asm/mman.h b/arch/mips/include/uapi/asm/mman.h
index 97c03f4689243be4e7b6157df73683fb47480d39..a6f8daff8e3b882eaed6b1de683b19424279b5c5 100644 (file)
--- a/arch/mips/include/uapi/asm/mman.h
+++ b/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 --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
index dd4d1876a020c1e0150cc87547e3f75f9940f16b..bda94f0d0b94ca658e0675730fd8b2907056d6b6 100644 (file)
--- a/arch/parisc/include/uapi/asm/mman.h
+++ b/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 --git a/arch/xtensa/include/uapi/asm/mman.h b/arch/xtensa/include/uapi/asm/mman.h
index 360944e1da52a0f31572a423a72a16a33fc86537..83c5150b06f9e3aa21b917a0430810bb514871d8 100644 (file)
--- a/arch/xtensa/include/uapi/asm/mman.h
+++ b/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 */