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arch: move common mmap flags to linux/mman.h

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Now that we have 3 mmap flags shared by all architectures,
let's move them into the common header.

This will help discourage future architectures from duplicating code.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Michael S. Tsirkin 2019-02-08 01:02:55 -05:00 committed by Arnd Bergmann
parent 852661a869
commit 746c9398f5
6 changed files with 9 additions and 15 deletions
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4
arch/alpha/include/uapi/asm/mman.h
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@ -10,9 +10,7 @@
#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_SHARED_VALIDATE 0x03 /* share + validate extension flags */
/* 0x01 - 0x03 are defined in linux/mman.h */
#define MAP_TYPE 0x0f /* Mask for type of mapping (OSF/1 is _wrong_) */
#define MAP_FIXED 0x100 /* Interpret addr exactly */
#define MAP_ANONYMOUS 0x10 /* don't use a file */

4
arch/mips/include/uapi/asm/mman.h
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@ -27,9 +27,7 @@
/*
* Flags for mmap
*/
#define MAP_SHARED 0x001 /* Share changes */
#define MAP_PRIVATE 0x002 /* Changes are private */
#define MAP_SHARED_VALIDATE 0x003 /* share + validate extension flags */
/* 0x01 - 0x03 are defined in linux/mman.h */
#define MAP_TYPE 0x00f /* Mask for type of mapping */
#define MAP_FIXED 0x010 /* Interpret addr exactly */

4
arch/parisc/include/uapi/asm/mman.h
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@ -10,9 +10,7 @@
#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_SHARED_VALIDATE 0x03 /* share + validate extension flags */
/* 0x01 - 0x03 are defined in linux/mman.h */
#define MAP_TYPE 0x2b /* Mask for type of mapping, includes bits 0x08 and 0x20 */
#define MAP_FIXED 0x04 /* Interpret addr exactly */
#define MAP_ANONYMOUS 0x10 /* don't use a file */

4
arch/xtensa/include/uapi/asm/mman.h
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@ -34,9 +34,7 @@
/*
* Flags for mmap
*/
#define MAP_SHARED 0x001 /* Share changes */
#define MAP_PRIVATE 0x002 /* Changes are private */
#define MAP_SHARED_VALIDATE 0x003 /* share + validate extension flags */
/* 0x01 - 0x03 are defined in linux/mman.h */
#define MAP_TYPE 0x00f /* Mask for type of mapping */
#define MAP_FIXED 0x010 /* Interpret addr exactly */

4
include/uapi/asm-generic/mman-common.h
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@ -15,9 +15,7 @@
#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_SHARED_VALIDATE 0x03 /* share + validate extension flags */
/* 0x01 - 0x03 are defined in linux/mman.h */
#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 */

4
include/uapi/linux/mman.h
View File

@ -12,6 +12,10 @@
#define OVERCOMMIT_ALWAYS 1
#define OVERCOMMIT_NEVER 2
#define MAP_SHARED 0x01 /* Share changes */
#define MAP_PRIVATE 0x02 /* Changes are private */
#define MAP_SHARED_VALIDATE 0x03 /* share + validate extension flags */
/*
* Huge page size encoding when MAP_HUGETLB is specified, and a huge page
* size other than the default is desired. See hugetlb_encode.h.