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

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.

Michael S. Tsirkin committed 7 years ago

Commit 746c9391 parent 852661a6 files · +9 −15Browse files

Showing the changes to include/uapi (2 of 6 files). Show all

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2 files
  1. include/uapi/asm-generic/mman-common.h +1 −3
  2. include/uapi/linux/mman.h +4 −0
include/uapi/asm-generic/mman-common.h+1−3
@@ -15,9 +15,7 @@ · 14 unmodified lines
1515 #define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */
1616 #define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */
1717
18−#define MAP_SHARED 0x01 /* Share changes */
19−#define MAP_PRIVATE 0x02 /* Changes are private */
20−#define MAP_SHARED_VALIDATE 0x03 /* share + validate extension flags */
18+/* 0x01 - 0x03 are defined in linux/mman.h */
2119 #define MAP_TYPE 0x0f /* Mask for type of mapping */
2220 #define MAP_FIXED 0x10 /* Interpret addr exactly */
2321 #define MAP_ANONYMOUS 0x20 /* don't use a file */
include/uapi/linux/mman.h+4−0
@@ -12,6 +12,10 @@ · 11 unmodified lines
1212 #define OVERCOMMIT_ALWAYS 1
1313 #define OVERCOMMIT_NEVER 2
1414
15+#define MAP_SHARED 0x01 /* Share changes */
16+#define MAP_PRIVATE 0x02 /* Changes are private */
17+#define MAP_SHARED_VALIDATE 0x03 /* share + validate extension flags */
18+
1519 /*
1620 * Huge page size encoding when MAP_HUGETLB is specified, and a huge page
1721 * size other than the default is desired. See hugetlb_encode.h.

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