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[PATCH] add asm-generic/mman.h

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Make new MADV_REMOVE, MADV_DONTFORK, MADV_DOFORK consistent across all
arches.  The idea is to make it possible to use them portably even before
distros include them in libc headers.

Move common flags to asm-generic/mman.h

Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Cc: Roland Dreier <rolandd@cisco.com>
Cc: Badari Pulavarty <pbadari@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Michael S. Tsirkin
2006-02-15 15:17:39 -08:00
committed by Linus Torvalds
parent 06fed33849
commit 5f6164f309
21 changed files with 96 additions and 503 deletions
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include/asm-mips/mman.h
+12 -10
View File
@@ -60,17 +60,19 @@
#define MCL_CURRENT 1 /* lock all current mappings */
#define MCL_FUTURE 2 /* lock all future mappings */
#define MADV_NORMAL 0x0 /* default page-in behavior */
#define MADV_RANDOM 0x1 /* page-in minimum required */
#define MADV_SEQUENTIAL 0x2 /* read-ahead aggressively */
#define MADV_WILLNEED 0x3 /* pre-fault pages */
#define MADV_DONTNEED 0x4 /* discard these pages */
#define MADV_REMOVE 0x5 /* remove these pages & resources */
#define MADV_DONTFORK 0x30 /* dont inherit across fork */
#define MADV_DOFORK 0x31 /* do inherit across fork */
#define MADV_NORMAL 0 /* no further special treatment */
#define MADV_RANDOM 1 /* expect random page references */
#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 */
/* common parameters: try to keep these consistent across architectures */
#define MADV_REMOVE 9 /* remove these pages & resources */
#define MADV_DONTFORK 10 /* don't inherit across fork */
#define MADV_DOFORK 11 /* do inherit across fork */
/* compatibility flags */
#define MAP_ANON MAP_ANONYMOUS
#define MAP_FILE 0
#define MAP_ANON MAP_ANONYMOUS
#define MAP_FILE 0
#endif /* _ASM_MMAN_H */