Commit ef58978f authored by Minchan Kim's avatar Minchan Kim Committed by Linus Torvalds

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.

[gang.chen.5i5j@gmail.com: let MADV_FREE have same value for all architectures]
Signed-off-by: default avatarMinchan Kim <minchan@kernel.org>
Acked-by: default avatarMax Filippov <jcmvbkbc@gmail.com>
Cc: Wu Fengguang <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>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>
Cc: Shaohua Li <shli@kernel.org>
Cc: <yalin.wang2010@gmail.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Chen Gang <gang.chen.5i5j@gmail.com>
Cc: Daniel Micay <danielmicay@gmail.com>
Cc: Darrick J. Wong <darrick.wong@oracle.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Hugh Dickins <hughd@google.com>
Cc: Jason Evans <je@fb.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Kirill A. Shutemov <kirill@shutemov.name>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mika Penttil <mika.penttila@nextfour.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Roland Dreier <roland@kernel.org>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Shaohua Li <shli@kernel.org>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: default avatarChen Gang <gang.chen.5i5j@gmail.com>
Acked-by: default avatarHugh Dickins <hughd@google.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 854e9ed0
...@@ -47,6 +47,7 @@ ...@@ -47,6 +47,7 @@
#define MADV_WILLNEED 3 /* will need these pages */ #define MADV_WILLNEED 3 /* will need these pages */
#define MADV_SPACEAVAIL 5 /* ensure resources are available */ #define MADV_SPACEAVAIL 5 /* ensure resources are available */
#define MADV_DONTNEED 6 /* don't need these pages */ #define MADV_DONTNEED 6 /* don't need these pages */
#define MADV_FREE 7 /* free pages only if memory pressure */
/* common/generic parameters */ /* common/generic parameters */
#define MADV_REMOVE 9 /* remove these pages & resources */ #define MADV_REMOVE 9 /* remove these pages & resources */
......
...@@ -73,6 +73,7 @@ ...@@ -73,6 +73,7 @@
#define MADV_SEQUENTIAL 2 /* expect sequential page references */ #define MADV_SEQUENTIAL 2 /* expect sequential page references */
#define MADV_WILLNEED 3 /* will need these pages */ #define MADV_WILLNEED 3 /* will need these pages */
#define MADV_DONTNEED 4 /* don't 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 */ /* common parameters: try to keep these consistent across architectures */
#define MADV_REMOVE 9 /* remove these pages & resources */ #define MADV_REMOVE 9 /* remove these pages & resources */
......
...@@ -43,6 +43,7 @@ ...@@ -43,6 +43,7 @@
#define MADV_SPACEAVAIL 5 /* insure that resources are reserved */ #define MADV_SPACEAVAIL 5 /* insure that resources are reserved */
#define MADV_VPS_PURGE 6 /* Purge pages from VM page cache */ #define MADV_VPS_PURGE 6 /* Purge pages from VM page cache */
#define MADV_VPS_INHERIT 7 /* Inherit parents page size */ #define MADV_VPS_INHERIT 7 /* Inherit parents page size */
#define MADV_FREE 8 /* free pages only if memory pressure */
/* common/generic parameters */ /* common/generic parameters */
#define MADV_REMOVE 9 /* remove these pages & resources */ #define MADV_REMOVE 9 /* remove these pages & resources */
......
...@@ -86,6 +86,7 @@ ...@@ -86,6 +86,7 @@
#define MADV_SEQUENTIAL 2 /* expect sequential page references */ #define MADV_SEQUENTIAL 2 /* expect sequential page references */
#define MADV_WILLNEED 3 /* will need these pages */ #define MADV_WILLNEED 3 /* will need these pages */
#define MADV_DONTNEED 4 /* don't 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 */ /* common parameters: try to keep these consistent across architectures */
#define MADV_REMOVE 9 /* remove these pages & resources */ #define MADV_REMOVE 9 /* remove these pages & resources */
......
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