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 piecies to arch maintainers but
included here for mmotm convenience.

Signed-off-by: Minchan Kim <minchan@kernel.org>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Chris Zankel <chris@zankel.net>
Acked-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/arch/alpha/include/uapi/asm/mman.h b/arch/alpha/include/uapi/asm/mman.h
index 0086b472bc2b4c8e2a588a2a8ab763c3243362f7..836fbd44f65bae7c79d5a325d0d34f44e4cc77bb 100644 (file)
--- a/arch/alpha/include/uapi/asm/mman.h
+++ b/arch/alpha/include/uapi/asm/mman.h
@@ -44,6 +44,7 @@
 #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 cfcb876cae6bc017e7fbf53e3df33fdc637680f3..106e741aa7eee8ef525debaacae85f44b5f92f1d 100644 (file)
--- a/arch/mips/include/uapi/asm/mman.h
+++ b/arch/mips/include/uapi/asm/mman.h
@@ -67,6 +67,7 @@
 #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 294d251ca7b2ee6472d6da01cf4e73f84a177cc2..6cb8db76fd4ec90c4bf80fc1483aedd58cac246f 100644 (file)
--- a/arch/parisc/include/uapi/asm/mman.h
+++ b/arch/parisc/include/uapi/asm/mman.h
@@ -40,6 +40,7 @@
 #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 201aec0e0446e84d2ee27d1f8bcd5a050c42344c..1b19f25bc567d83fcde9926eb025797f172eab2d 100644 (file)
--- a/arch/xtensa/include/uapi/asm/mman.h
+++ b/arch/xtensa/include/uapi/asm/mman.h
@@ -80,6 +80,7 @@
 #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 */