From f822566165dd46ff5de9bf895cfa6c51f53bb0c4 Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Tue, 14 Feb 2006 13:53:08 -0800 Subject: [PATCH] madvise MADV_DONTFORK/MADV_DOFORK Currently, copy-on-write may change the physical address of a page even if the user requested that the page is pinned in memory (either by mlock or by get_user_pages). This happens if the process forks meanwhile, and the parent writes to that page. As a result, the page is orphaned: in case of get_user_pages, the application will never see any data hardware DMA's into this page after the COW. In case of mlock'd memory, the parent is not getting the realtime/security benefits of mlock. In particular, this affects the Infiniband modules which do DMA from and into user pages all the time. This patch adds madvise options to control whether memory range is inherited across fork. Useful e.g. for when hardware is doing DMA from/into these pages. Could also be useful to an application wanting to speed up its forks by cutting large areas out of consideration. Signed-off-by: Michael S. Tsirkin Acked-by: Hugh Dickins Cc: Michael Kerrisk Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-frv/mman.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/asm-frv/mman.h') diff --git a/include/asm-frv/mman.h b/include/asm-frv/mman.h index 8af4a41c255e..d3bca306da82 100644 --- a/include/asm-frv/mman.h +++ b/include/asm-frv/mman.h @@ -36,6 +36,8 @@ #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 */ /* compatibility flags */ #define MAP_ANON MAP_ANONYMOUS -- cgit v1.2.3 From 5f6164f3092832e0d9b12eed52e09a76bf39c64a Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Wed, 15 Feb 2006 15:17:39 -0800 Subject: [PATCH] add asm-generic/mman.h 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 Cc: Roland Dreier Cc: Badari Pulavarty Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-alpha/mman.h | 8 +++++--- include/asm-arm/mman.h | 31 +------------------------------ include/asm-arm26/mman.h | 31 +------------------------------ include/asm-cris/mman.h | 31 +------------------------------ include/asm-frv/mman.h | 31 +------------------------------ include/asm-generic/mman.h | 42 ++++++++++++++++++++++++++++++++++++++++++ include/asm-h8300/mman.h | 31 +------------------------------ include/asm-i386/mman.h | 31 +------------------------------ include/asm-ia64/mman.h | 31 +------------------------------ include/asm-m32r/mman.h | 33 ++------------------------------- include/asm-m68k/mman.h | 31 +------------------------------ include/asm-mips/mman.h | 22 ++++++++++++---------- include/asm-parisc/mman.h | 8 +++++--- include/asm-powerpc/mman.h | 32 ++------------------------------ include/asm-s390/mman.h | 31 +------------------------------ include/asm-sh/mman.h | 31 +------------------------------ include/asm-sparc/mman.h | 31 ++----------------------------- include/asm-sparc64/mman.h | 31 ++----------------------------- include/asm-v850/mman.h | 30 +----------------------------- include/asm-x86_64/mman.h | 30 +----------------------------- include/asm-xtensa/mman.h | 22 ++++++++++++---------- 21 files changed, 96 insertions(+), 503 deletions(-) create mode 100644 include/asm-generic/mman.h (limited to 'include/asm-frv/mman.h') diff --git a/include/asm-alpha/mman.h b/include/asm-alpha/mman.h index a21515c16a43..5f24c755f577 100644 --- a/include/asm-alpha/mman.h +++ b/include/asm-alpha/mman.h @@ -42,9 +42,11 @@ #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_REMOVE 7 /* remove these pages & resources */ -#define MADV_DONTFORK 0x30 /* dont inherit across fork */ -#define MADV_DOFORK 0x31 /* do inherit across fork */ + +/* common/generic parameters */ +#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 diff --git a/include/asm-arm/mman.h b/include/asm-arm/mman.h index 693ed859e632..54570d2e95b7 100644 --- a/include/asm-arm/mman.h +++ b/include/asm-arm/mman.h @@ -1,19 +1,7 @@ #ifndef __ARM_MMAN_H__ #define __ARM_MMAN_H__ -#define PROT_READ 0x1 /* page can be read */ -#define PROT_WRITE 0x2 /* page can be written */ -#define PROT_EXEC 0x4 /* page can be executed */ -#define PROT_SEM 0x8 /* page may be used for atomic ops */ -#define PROT_NONE 0x0 /* page can not be accessed */ -#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */ -#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */ - -#define MAP_SHARED 0x01 /* Share changes */ -#define MAP_PRIVATE 0x02 /* Changes are private */ -#define MAP_TYPE 0x0f /* Mask for type of mapping */ -#define MAP_FIXED 0x10 /* Interpret addr exactly */ -#define MAP_ANONYMOUS 0x20 /* don't use a file */ +#include #define MAP_GROWSDOWN 0x0100 /* stack-like segment */ #define MAP_DENYWRITE 0x0800 /* ETXTBSY */ @@ -23,24 +11,7 @@ #define MAP_POPULATE 0x8000 /* populate (prefault) page tables */ #define MAP_NONBLOCK 0x10000 /* do not block on IO */ -#define MS_ASYNC 1 /* sync memory asynchronously */ -#define MS_INVALIDATE 2 /* invalidate the caches */ -#define MS_SYNC 4 /* synchronous memory sync */ - #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 */ - -/* compatibility flags */ -#define MAP_ANON MAP_ANONYMOUS -#define MAP_FILE 0 - #endif /* __ARM_MMAN_H__ */ diff --git a/include/asm-arm26/mman.h b/include/asm-arm26/mman.h index 2096c50df888..4000a6c1b76b 100644 --- a/include/asm-arm26/mman.h +++ b/include/asm-arm26/mman.h @@ -1,19 +1,7 @@ #ifndef __ARM_MMAN_H__ #define __ARM_MMAN_H__ -#define PROT_READ 0x1 /* page can be read */ -#define PROT_WRITE 0x2 /* page can be written */ -#define PROT_EXEC 0x4 /* page can be executed */ -#define PROT_SEM 0x8 /* page may be used for atomic ops */ -#define PROT_NONE 0x0 /* page can not be accessed */ -#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */ -#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */ - -#define MAP_SHARED 0x01 /* Share changes */ -#define MAP_PRIVATE 0x02 /* Changes are private */ -#define MAP_TYPE 0x0f /* Mask for type of mapping */ -#define MAP_FIXED 0x10 /* Interpret addr exactly */ -#define MAP_ANONYMOUS 0x20 /* don't use a file */ +#include #define MAP_GROWSDOWN 0x0100 /* stack-like segment */ #define MAP_DENYWRITE 0x0800 /* ETXTBSY */ @@ -23,24 +11,7 @@ #define MAP_POPULATE 0x8000 /* populate (prefault) page tables */ #define MAP_NONBLOCK 0x10000 /* do not block on IO */ -#define MS_ASYNC 1 /* sync memory asynchronously */ -#define MS_INVALIDATE 2 /* invalidate the caches */ -#define MS_SYNC 4 /* synchronous memory sync */ - #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 */ - -/* compatibility flags */ -#define MAP_ANON MAP_ANONYMOUS -#define MAP_FILE 0 - #endif /* __ARM_MMAN_H__ */ diff --git a/include/asm-cris/mman.h b/include/asm-cris/mman.h index deddfb239ff5..1c35e1b66b46 100644 --- a/include/asm-cris/mman.h +++ b/include/asm-cris/mman.h @@ -3,19 +3,7 @@ /* verbatim copy of asm-i386/ version */ -#define PROT_READ 0x1 /* page can be read */ -#define PROT_WRITE 0x2 /* page can be written */ -#define PROT_EXEC 0x4 /* page can be executed */ -#define PROT_SEM 0x8 /* page may be used for atomic ops */ -#define PROT_NONE 0x0 /* page can not be accessed */ -#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */ -#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */ - -#define MAP_SHARED 0x01 /* Share changes */ -#define MAP_PRIVATE 0x02 /* Changes are private */ -#define MAP_TYPE 0x0f /* Mask for type of mapping */ -#define MAP_FIXED 0x10 /* Interpret addr exactly */ -#define MAP_ANONYMOUS 0x20 /* don't use a file */ +#include #define MAP_GROWSDOWN 0x0100 /* stack-like segment */ #define MAP_DENYWRITE 0x0800 /* ETXTBSY */ @@ -25,24 +13,7 @@ #define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */ #define MAP_NONBLOCK 0x10000 /* do not block on IO */ -#define MS_ASYNC 1 /* sync memory asynchronously */ -#define MS_INVALIDATE 2 /* invalidate the caches */ -#define MS_SYNC 4 /* synchronous memory sync */ - #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 */ - -/* compatibility flags */ -#define MAP_ANON MAP_ANONYMOUS -#define MAP_FILE 0 - #endif /* __CRIS_MMAN_H__ */ diff --git a/include/asm-frv/mman.h b/include/asm-frv/mman.h index d3bca306da82..b4371e928683 100644 --- a/include/asm-frv/mman.h +++ b/include/asm-frv/mman.h @@ -1,19 +1,7 @@ #ifndef __ASM_MMAN_H__ #define __ASM_MMAN_H__ -#define PROT_READ 0x1 /* page can be read */ -#define PROT_WRITE 0x2 /* page can be written */ -#define PROT_EXEC 0x4 /* page can be executed */ -#define PROT_SEM 0x8 /* page may be used for atomic ops */ -#define PROT_NONE 0x0 /* page can not be accessed */ -#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */ -#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */ - -#define MAP_SHARED 0x01 /* Share changes */ -#define MAP_PRIVATE 0x02 /* Changes are private */ -#define MAP_TYPE 0x0f /* Mask for type of mapping */ -#define MAP_FIXED 0x10 /* Interpret addr exactly */ -#define MAP_ANONYMOUS 0x20 /* don't use a file */ +#include #define MAP_GROWSDOWN 0x0100 /* stack-like segment */ #define MAP_DENYWRITE 0x0800 /* ETXTBSY */ @@ -23,25 +11,8 @@ #define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */ #define MAP_NONBLOCK 0x10000 /* do not block on IO */ -#define MS_ASYNC 1 /* sync memory asynchronously */ -#define MS_INVALIDATE 2 /* invalidate the caches */ -#define MS_SYNC 4 /* synchronous memory sync */ - #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 */ - -/* compatibility flags */ -#define MAP_ANON MAP_ANONYMOUS -#define MAP_FILE 0 - #endif /* __ASM_MMAN_H__ */ diff --git a/include/asm-generic/mman.h b/include/asm-generic/mman.h new file mode 100644 index 000000000000..3b41d2bb70da --- /dev/null +++ b/include/asm-generic/mman.h @@ -0,0 +1,42 @@ +#ifndef _ASM_GENERIC_MMAN_H +#define _ASM_GENERIC_MMAN_H + +/* + Author: Michael S. Tsirkin , Mellanox Technologies Ltd. + Based on: asm-xxx/mman.h +*/ + +#define PROT_READ 0x1 /* page can be read */ +#define PROT_WRITE 0x2 /* page can be written */ +#define PROT_EXEC 0x4 /* page can be executed */ +#define PROT_SEM 0x8 /* page may be used for atomic ops */ +#define PROT_NONE 0x0 /* page can not be accessed */ +#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */ +#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */ + +#define MAP_SHARED 0x01 /* Share changes */ +#define MAP_PRIVATE 0x02 /* Changes are private */ +#define MAP_TYPE 0x0f /* Mask for type of mapping */ +#define MAP_FIXED 0x10 /* Interpret addr exactly */ +#define MAP_ANONYMOUS 0x20 /* don't use a file */ + +#define MS_ASYNC 1 /* sync memory asynchronously */ +#define MS_INVALIDATE 2 /* invalidate the caches */ +#define MS_SYNC 4 /* synchronous memory sync */ + +#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 + +#endif diff --git a/include/asm-h8300/mman.h b/include/asm-h8300/mman.h index ac0346f7d11d..b9f104f22a36 100644 --- a/include/asm-h8300/mman.h +++ b/include/asm-h8300/mman.h @@ -1,19 +1,7 @@ #ifndef __H8300_MMAN_H__ #define __H8300_MMAN_H__ -#define PROT_READ 0x1 /* page can be read */ -#define PROT_WRITE 0x2 /* page can be written */ -#define PROT_EXEC 0x4 /* page can be executed */ -#define PROT_SEM 0x8 /* page may be used for atomic ops */ -#define PROT_NONE 0x0 /* page can not be accessed */ -#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */ -#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */ - -#define MAP_SHARED 0x01 /* Share changes */ -#define MAP_PRIVATE 0x02 /* Changes are private */ -#define MAP_TYPE 0x0f /* Mask for type of mapping */ -#define MAP_FIXED 0x10 /* Interpret addr exactly */ -#define MAP_ANONYMOUS 0x20 /* don't use a file */ +#include #define MAP_GROWSDOWN 0x0100 /* stack-like segment */ #define MAP_DENYWRITE 0x0800 /* ETXTBSY */ @@ -23,24 +11,7 @@ #define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */ #define MAP_NONBLOCK 0x10000 /* do not block on IO */ -#define MS_ASYNC 1 /* sync memory asynchronously */ -#define MS_INVALIDATE 2 /* invalidate the caches */ -#define MS_SYNC 4 /* synchronous memory sync */ - #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 */ - -/* compatibility flags */ -#define MAP_ANON MAP_ANONYMOUS -#define MAP_FILE 0 - #endif /* __H8300_MMAN_H__ */ diff --git a/include/asm-i386/mman.h b/include/asm-i386/mman.h index ab2339a1d807..8fd9d7ab7faf 100644 --- a/include/asm-i386/mman.h +++ b/include/asm-i386/mman.h @@ -1,19 +1,7 @@ #ifndef __I386_MMAN_H__ #define __I386_MMAN_H__ -#define PROT_READ 0x1 /* page can be read */ -#define PROT_WRITE 0x2 /* page can be written */ -#define PROT_EXEC 0x4 /* page can be executed */ -#define PROT_SEM 0x8 /* page may be used for atomic ops */ -#define PROT_NONE 0x0 /* page can not be accessed */ -#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */ -#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */ - -#define MAP_SHARED 0x01 /* Share changes */ -#define MAP_PRIVATE 0x02 /* Changes are private */ -#define MAP_TYPE 0x0f /* Mask for type of mapping */ -#define MAP_FIXED 0x10 /* Interpret addr exactly */ -#define MAP_ANONYMOUS 0x20 /* don't use a file */ +#include #define MAP_GROWSDOWN 0x0100 /* stack-like segment */ #define MAP_DENYWRITE 0x0800 /* ETXTBSY */ @@ -23,24 +11,7 @@ #define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */ #define MAP_NONBLOCK 0x10000 /* do not block on IO */ -#define MS_ASYNC 1 /* sync memory asynchronously */ -#define MS_INVALIDATE 2 /* invalidate the caches */ -#define MS_SYNC 4 /* synchronous memory sync */ - #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 */ - -/* compatibility flags */ -#define MAP_ANON MAP_ANONYMOUS -#define MAP_FILE 0 - #endif /* __I386_MMAN_H__ */ diff --git a/include/asm-ia64/mman.h b/include/asm-ia64/mman.h index 357ebb780cc0..6ba179f12718 100644 --- a/include/asm-ia64/mman.h +++ b/include/asm-ia64/mman.h @@ -8,19 +8,7 @@ * David Mosberger-Tang , Hewlett-Packard Co */ -#define PROT_READ 0x1 /* page can be read */ -#define PROT_WRITE 0x2 /* page can be written */ -#define PROT_EXEC 0x4 /* page can be executed */ -#define PROT_SEM 0x8 /* page may be used for atomic ops */ -#define PROT_NONE 0x0 /* page can not be accessed */ -#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */ -#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */ - -#define MAP_SHARED 0x01 /* Share changes */ -#define MAP_PRIVATE 0x02 /* Changes are private */ -#define MAP_TYPE 0x0f /* Mask for type of mapping */ -#define MAP_FIXED 0x10 /* Interpret addr exactly */ -#define MAP_ANONYMOUS 0x20 /* don't use a file */ +#include #define MAP_GROWSDOWN 0x00100 /* stack-like segment */ #define MAP_GROWSUP 0x00200 /* register stack-like segment */ @@ -31,24 +19,7 @@ #define MAP_POPULATE 0x08000 /* populate (prefault) pagetables */ #define MAP_NONBLOCK 0x10000 /* do not block on IO */ -#define MS_ASYNC 1 /* sync memory asynchronously */ -#define MS_INVALIDATE 2 /* invalidate the caches */ -#define MS_SYNC 4 /* synchronous memory sync */ - #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 */ - -/* compatibility flags */ -#define MAP_ANON MAP_ANONYMOUS -#define MAP_FILE 0 - #endif /* _ASM_IA64_MMAN_H */ diff --git a/include/asm-m32r/mman.h b/include/asm-m32r/mman.h index 6b02fe3fcff2..695a860c024f 100644 --- a/include/asm-m32r/mman.h +++ b/include/asm-m32r/mman.h @@ -1,21 +1,9 @@ #ifndef __M32R_MMAN_H__ #define __M32R_MMAN_H__ -/* orig : i386 2.6.0-test6 */ - -#define PROT_READ 0x1 /* page can be read */ -#define PROT_WRITE 0x2 /* page can be written */ -#define PROT_EXEC 0x4 /* page can be executed */ -#define PROT_SEM 0x8 /* page may be used for atomic ops */ -#define PROT_NONE 0x0 /* page can not be accessed */ -#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */ -#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */ +#include -#define MAP_SHARED 0x01 /* Share changes */ -#define MAP_PRIVATE 0x02 /* Changes are private */ -#define MAP_TYPE 0x0f /* Mask for type of mapping */ -#define MAP_FIXED 0x10 /* Interpret addr exactly */ -#define MAP_ANONYMOUS 0x20 /* don't use a file */ +/* orig : i386 2.6.0-test6 */ #define MAP_GROWSDOWN 0x0100 /* stack-like segment */ #define MAP_DENYWRITE 0x0800 /* ETXTBSY */ @@ -25,24 +13,7 @@ #define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */ #define MAP_NONBLOCK 0x10000 /* do not block on IO */ -#define MS_ASYNC 1 /* sync memory asynchronously */ -#define MS_INVALIDATE 2 /* invalidate the caches */ -#define MS_SYNC 4 /* synchronous memory sync */ - #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 */ - -/* compatibility flags */ -#define MAP_ANON MAP_ANONYMOUS -#define MAP_FILE 0 - #endif /* __M32R_MMAN_H__ */ diff --git a/include/asm-m68k/mman.h b/include/asm-m68k/mman.h index efd12bc4ccb7..1626d37f4898 100644 --- a/include/asm-m68k/mman.h +++ b/include/asm-m68k/mman.h @@ -1,19 +1,7 @@ #ifndef __M68K_MMAN_H__ #define __M68K_MMAN_H__ -#define PROT_READ 0x1 /* page can be read */ -#define PROT_WRITE 0x2 /* page can be written */ -#define PROT_EXEC 0x4 /* page can be executed */ -#define PROT_SEM 0x8 /* page may be used for atomic ops */ -#define PROT_NONE 0x0 /* page can not be accessed */ -#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */ -#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */ - -#define MAP_SHARED 0x01 /* Share changes */ -#define MAP_PRIVATE 0x02 /* Changes are private */ -#define MAP_TYPE 0x0f /* Mask for type of mapping */ -#define MAP_FIXED 0x10 /* Interpret addr exactly */ -#define MAP_ANONYMOUS 0x20 /* don't use a file */ +#include #define MAP_GROWSDOWN 0x0100 /* stack-like segment */ #define MAP_DENYWRITE 0x0800 /* ETXTBSY */ @@ -23,24 +11,7 @@ #define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */ #define MAP_NONBLOCK 0x10000 /* do not block on IO */ -#define MS_ASYNC 1 /* sync memory asynchronously */ -#define MS_INVALIDATE 2 /* invalidate the caches */ -#define MS_SYNC 4 /* synchronous memory sync */ - #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 */ - -/* compatibility flags */ -#define MAP_ANON MAP_ANONYMOUS -#define MAP_FILE 0 - #endif /* __M68K_MMAN_H__ */ diff --git a/include/asm-mips/mman.h b/include/asm-mips/mman.h index 6d01e26830fa..046cf686bee7 100644 --- a/include/asm-mips/mman.h +++ b/include/asm-mips/mman.h @@ -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 */ diff --git a/include/asm-parisc/mman.h b/include/asm-parisc/mman.h index a381cf5c8f55..0ef15ee0f17e 100644 --- a/include/asm-parisc/mman.h +++ b/include/asm-parisc/mman.h @@ -38,7 +38,11 @@ #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_REMOVE 8 /* remove these pages & resources */ + +/* common/generic parameters */ +#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 */ /* The range 12-64 is reserved for page size specification. */ #define MADV_4K_PAGES 12 /* Use 4K pages */ @@ -49,8 +53,6 @@ #define MADV_4M_PAGES 22 /* Use 4 Megabyte pages */ #define MADV_16M_PAGES 24 /* Use 16 Megabyte pages */ #define MADV_64M_PAGES 26 /* Use 64 Megabyte pages */ -#define MADV_DONTFORK 0x30 /* dont inherit across fork */ -#define MADV_DOFORK 0x31 /* do inherit across fork */ /* compatibility flags */ #define MAP_ANON MAP_ANONYMOUS diff --git a/include/asm-powerpc/mman.h b/include/asm-powerpc/mman.h index fcff25d13f13..24cf664a8295 100644 --- a/include/asm-powerpc/mman.h +++ b/include/asm-powerpc/mman.h @@ -1,6 +1,8 @@ #ifndef _ASM_POWERPC_MMAN_H #define _ASM_POWERPC_MMAN_H +#include + /* * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License @@ -8,19 +10,6 @@ * 2 of the License, or (at your option) any later version. */ -#define PROT_READ 0x1 /* page can be read */ -#define PROT_WRITE 0x2 /* page can be written */ -#define PROT_EXEC 0x4 /* page can be executed */ -#define PROT_SEM 0x8 /* page may be used for atomic ops */ -#define PROT_NONE 0x0 /* page can not be accessed */ -#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */ -#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */ - -#define MAP_SHARED 0x01 /* Share changes */ -#define MAP_PRIVATE 0x02 /* Changes are private */ -#define MAP_TYPE 0x0f /* Mask for type of mapping */ -#define MAP_FIXED 0x10 /* Interpret addr exactly */ -#define MAP_ANONYMOUS 0x20 /* don't use a file */ #define MAP_RENAME MAP_ANONYMOUS /* In SunOS terminology */ #define MAP_NORESERVE 0x40 /* don't reserve swap pages */ #define MAP_LOCKED 0x80 @@ -29,27 +18,10 @@ #define MAP_DENYWRITE 0x0800 /* ETXTBSY */ #define MAP_EXECUTABLE 0x1000 /* mark it as an executable */ -#define MS_ASYNC 1 /* sync memory asynchronously */ -#define MS_INVALIDATE 2 /* invalidate the caches */ -#define MS_SYNC 4 /* synchronous memory sync */ - #define MCL_CURRENT 0x2000 /* lock all currently mapped pages */ #define MCL_FUTURE 0x4000 /* lock all additions to address space */ #define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */ #define MAP_NONBLOCK 0x10000 /* do not block on IO */ -#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 */ - -/* compatibility flags */ -#define MAP_ANON MAP_ANONYMOUS -#define MAP_FILE 0 - #endif /* _ASM_POWERPC_MMAN_H */ diff --git a/include/asm-s390/mman.h b/include/asm-s390/mman.h index d41ca1477010..7839767d837e 100644 --- a/include/asm-s390/mman.h +++ b/include/asm-s390/mman.h @@ -9,19 +9,7 @@ #ifndef __S390_MMAN_H__ #define __S390_MMAN_H__ -#define PROT_READ 0x1 /* page can be read */ -#define PROT_WRITE 0x2 /* page can be written */ -#define PROT_EXEC 0x4 /* page can be executed */ -#define PROT_SEM 0x8 /* page may be used for atomic ops */ -#define PROT_NONE 0x0 /* page can not be accessed */ -#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */ -#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */ - -#define MAP_SHARED 0x01 /* Share changes */ -#define MAP_PRIVATE 0x02 /* Changes are private */ -#define MAP_TYPE 0x0f /* Mask for type of mapping */ -#define MAP_FIXED 0x10 /* Interpret addr exactly */ -#define MAP_ANONYMOUS 0x20 /* don't use a file */ +#include #define MAP_GROWSDOWN 0x0100 /* stack-like segment */ #define MAP_DENYWRITE 0x0800 /* ETXTBSY */ @@ -31,24 +19,7 @@ #define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */ #define MAP_NONBLOCK 0x10000 /* do not block on IO */ -#define MS_ASYNC 1 /* sync memory asynchronously */ -#define MS_INVALIDATE 2 /* invalidate the caches */ -#define MS_SYNC 4 /* synchronous memory sync */ - #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 */ - -/* compatibility flags */ -#define MAP_ANON MAP_ANONYMOUS -#define MAP_FILE 0 - #endif /* __S390_MMAN_H__ */ diff --git a/include/asm-sh/mman.h b/include/asm-sh/mman.h index 0e08d0573abc..156eb0225cf6 100644 --- a/include/asm-sh/mman.h +++ b/include/asm-sh/mman.h @@ -1,19 +1,7 @@ #ifndef __ASM_SH_MMAN_H #define __ASM_SH_MMAN_H -#define PROT_READ 0x1 /* page can be read */ -#define PROT_WRITE 0x2 /* page can be written */ -#define PROT_EXEC 0x4 /* page can be executed */ -#define PROT_SEM 0x8 /* page may be used for atomic ops */ -#define PROT_NONE 0x0 /* page can not be accessed */ -#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */ -#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */ - -#define MAP_SHARED 0x01 /* Share changes */ -#define MAP_PRIVATE 0x02 /* Changes are private */ -#define MAP_TYPE 0x0f /* Mask for type of mapping */ -#define MAP_FIXED 0x10 /* Interpret addr exactly */ -#define MAP_ANONYMOUS 0x20 /* don't use a file */ +#include #define MAP_GROWSDOWN 0x0100 /* stack-like segment */ #define MAP_DENYWRITE 0x0800 /* ETXTBSY */ @@ -23,24 +11,7 @@ #define MAP_POPULATE 0x8000 /* populate (prefault) page tables */ #define MAP_NONBLOCK 0x10000 /* do not block on IO */ -#define MS_ASYNC 1 /* sync memory asynchronously */ -#define MS_INVALIDATE 2 /* invalidate the caches */ -#define MS_SYNC 4 /* synchronous memory sync */ - #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 */ - -/* compatibility flags */ -#define MAP_ANON MAP_ANONYMOUS -#define MAP_FILE 0 - #endif /* __ASM_SH_MMAN_H */ diff --git a/include/asm-sparc/mman.h b/include/asm-sparc/mman.h index 4a298b2be859..88d1886abf3b 100644 --- a/include/asm-sparc/mman.h +++ b/include/asm-sparc/mman.h @@ -2,21 +2,10 @@ #ifndef __SPARC_MMAN_H__ #define __SPARC_MMAN_H__ -/* SunOS'ified... */ +#include -#define PROT_READ 0x1 /* page can be read */ -#define PROT_WRITE 0x2 /* page can be written */ -#define PROT_EXEC 0x4 /* page can be executed */ -#define PROT_SEM 0x8 /* page may be used for atomic ops */ -#define PROT_NONE 0x0 /* page can not be accessed */ -#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */ -#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */ +/* SunOS'ified... */ -#define MAP_SHARED 0x01 /* Share changes */ -#define MAP_PRIVATE 0x02 /* Changes are private */ -#define MAP_TYPE 0x0f /* Mask for type of mapping */ -#define MAP_FIXED 0x10 /* Interpret addr exactly */ -#define MAP_ANONYMOUS 0x20 /* don't use a file */ #define MAP_RENAME MAP_ANONYMOUS /* In SunOS terminology */ #define MAP_NORESERVE 0x40 /* don't reserve swap pages */ #define MAP_INHERIT 0x80 /* SunOS doesn't do this, but... */ @@ -27,10 +16,6 @@ #define MAP_DENYWRITE 0x0800 /* ETXTBSY */ #define MAP_EXECUTABLE 0x1000 /* mark it as an executable */ -#define MS_ASYNC 1 /* sync memory asynchronously */ -#define MS_INVALIDATE 2 /* invalidate the caches */ -#define MS_SYNC 4 /* synchronous memory sync */ - #define MCL_CURRENT 0x2000 /* lock all currently mapped pages */ #define MCL_FUTURE 0x4000 /* lock all additions to address space */ @@ -48,18 +33,6 @@ #define MC_LOCKAS 5 /* Lock an entire address space of the calling process */ #define MC_UNLOCKAS 6 /* Unlock entire address space of calling process */ -#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_FREE 0x5 /* (Solaris) contents can be freed */ -#define MADV_REMOVE 0x6 /* remove these pages & resources */ -#define MADV_DONTFORK 0x30 /* dont inherit across fork */ -#define MADV_DOFORK 0x31 /* do inherit across fork */ - -/* compatibility flags */ -#define MAP_ANON MAP_ANONYMOUS -#define MAP_FILE 0 #endif /* __SPARC_MMAN_H__ */ diff --git a/include/asm-sparc64/mman.h b/include/asm-sparc64/mman.h index d705ec92da8b..6fd878e61435 100644 --- a/include/asm-sparc64/mman.h +++ b/include/asm-sparc64/mman.h @@ -2,21 +2,10 @@ #ifndef __SPARC64_MMAN_H__ #define __SPARC64_MMAN_H__ -/* SunOS'ified... */ +#include -#define PROT_READ 0x1 /* page can be read */ -#define PROT_WRITE 0x2 /* page can be written */ -#define PROT_EXEC 0x4 /* page can be executed */ -#define PROT_SEM 0x8 /* page may be used for atomic ops */ -#define PROT_NONE 0x0 /* page can not be accessed */ -#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */ -#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */ +/* SunOS'ified... */ -#define MAP_SHARED 0x01 /* Share changes */ -#define MAP_PRIVATE 0x02 /* Changes are private */ -#define MAP_TYPE 0x0f /* Mask for type of mapping */ -#define MAP_FIXED 0x10 /* Interpret addr exactly */ -#define MAP_ANONYMOUS 0x20 /* don't use a file */ #define MAP_RENAME MAP_ANONYMOUS /* In SunOS terminology */ #define MAP_NORESERVE 0x40 /* don't reserve swap pages */ #define MAP_INHERIT 0x80 /* SunOS doesn't do this, but... */ @@ -27,10 +16,6 @@ #define MAP_DENYWRITE 0x0800 /* ETXTBSY */ #define MAP_EXECUTABLE 0x1000 /* mark it as an executable */ -#define MS_ASYNC 1 /* sync memory asynchronously */ -#define MS_INVALIDATE 2 /* invalidate the caches */ -#define MS_SYNC 4 /* synchronous memory sync */ - #define MCL_CURRENT 0x2000 /* lock all currently mapped pages */ #define MCL_FUTURE 0x4000 /* lock all additions to address space */ @@ -48,18 +33,6 @@ #define MC_LOCKAS 5 /* Lock an entire address space of the calling process */ #define MC_UNLOCKAS 6 /* Unlock entire address space of calling process */ -#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_FREE 0x5 /* (Solaris) contents can be freed */ -#define MADV_REMOVE 0x6 /* remove these pages & resources */ -#define MADV_DONTFORK 0x30 /* dont inherit across fork */ -#define MADV_DOFORK 0x31 /* do inherit across fork */ - -/* compatibility flags */ -#define MAP_ANON MAP_ANONYMOUS -#define MAP_FILE 0 #endif /* __SPARC64_MMAN_H__ */ diff --git a/include/asm-v850/mman.h b/include/asm-v850/mman.h index 7b851c310e41..edbf6edbfb37 100644 --- a/include/asm-v850/mman.h +++ b/include/asm-v850/mman.h @@ -1,18 +1,7 @@ #ifndef __V850_MMAN_H__ #define __V850_MMAN_H__ -#define PROT_READ 0x1 /* page can be read */ -#define PROT_WRITE 0x2 /* page can be written */ -#define PROT_EXEC 0x4 /* page can be executed */ -#define PROT_NONE 0x0 /* page can not be accessed */ -#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */ -#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */ - -#define MAP_SHARED 0x01 /* Share changes */ -#define MAP_PRIVATE 0x02 /* Changes are private */ -#define MAP_TYPE 0x0f /* Mask for type of mapping */ -#define MAP_FIXED 0x10 /* Interpret addr exactly */ -#define MAP_ANONYMOUS 0x20 /* don't use a file */ +#include #define MAP_GROWSDOWN 0x0100 /* stack-like segment */ #define MAP_DENYWRITE 0x0800 /* ETXTBSY */ @@ -20,24 +9,7 @@ #define MAP_LOCKED 0x2000 /* pages are locked */ #define MAP_NORESERVE 0x4000 /* don't check for reservations */ -#define MS_ASYNC 1 /* sync memory asynchronously */ -#define MS_INVALIDATE 2 /* invalidate the caches */ -#define MS_SYNC 4 /* synchronous memory sync */ - #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 */ - -/* compatibility flags */ -#define MAP_ANON MAP_ANONYMOUS -#define MAP_FILE 0 - #endif /* __V850_MMAN_H__ */ diff --git a/include/asm-x86_64/mman.h b/include/asm-x86_64/mman.h index b699a38c1c3c..dd5cb0534d37 100644 --- a/include/asm-x86_64/mman.h +++ b/include/asm-x86_64/mman.h @@ -1,19 +1,8 @@ #ifndef __X8664_MMAN_H__ #define __X8664_MMAN_H__ -#define PROT_READ 0x1 /* page can be read */ -#define PROT_WRITE 0x2 /* page can be written */ -#define PROT_EXEC 0x4 /* page can be executed */ -#define PROT_NONE 0x0 /* page can not be accessed */ -#define PROT_SEM 0x8 -#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */ -#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */ +#include -#define MAP_SHARED 0x01 /* Share changes */ -#define MAP_PRIVATE 0x02 /* Changes are private */ -#define MAP_TYPE 0x0f /* Mask for type of mapping */ -#define MAP_FIXED 0x10 /* Interpret addr exactly */ -#define MAP_ANONYMOUS 0x20 /* don't use a file */ #define MAP_32BIT 0x40 /* only give out 32bit addresses */ #define MAP_GROWSDOWN 0x0100 /* stack-like segment */ @@ -24,24 +13,7 @@ #define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */ #define MAP_NONBLOCK 0x10000 /* do not block on IO */ -#define MS_ASYNC 1 /* sync memory asynchronously */ -#define MS_INVALIDATE 2 /* invalidate the caches */ -#define MS_SYNC 4 /* synchronous memory sync */ - #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 */ - -/* compatibility flags */ -#define MAP_ANON MAP_ANONYMOUS -#define MAP_FILE 0 - #endif diff --git a/include/asm-xtensa/mman.h b/include/asm-xtensa/mman.h index e2d7afb679c8..ba394cbb4807 100644 --- a/include/asm-xtensa/mman.h +++ b/include/asm-xtensa/mman.h @@ -67,17 +67,19 @@ #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 /* _XTENSA_MMAN_H */ -- cgit v1.2.3