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| author | Helge Deller <deller@gmx.de> | 2022-12-11 19:50:20 +0100 |
|---|---|---|
| committer | Helge Deller <deller@gmx.de> | 2022-12-17 23:19:39 +0100 |
| commit | 71bdea6f798b425bc0003780b13e3fdecb16a010 (patch) | |
| tree | 5977f44eb3b734b91f477bcbed9e632b719c1615 /arch/parisc/include | |
| parent | 41f563ab3c33698bdfc3403c7c2e6c94e73681e4 (diff) | |
| download | linux-71bdea6f798b425bc0003780b13e3fdecb16a010.tar.bz2 | |
parisc: Align parisc MADV_XXX constants with all other architectures
Adjust some MADV_XXX constants to be in sync what their values are on
all other platforms. There is currently no reason to have an own
numbering on parisc, but it requires workarounds in many userspace
sources (e.g. glibc, qemu, ...) - which are often forgotten and thus
introduce bugs and different behaviour on parisc.
A wrapper avoids an ABI breakage for existing userspace applications by
translating any old values to the new ones, so this change allows us to
move over all programs to the new ABI over time.
Signed-off-by: Helge Deller <deller@gmx.de>
Diffstat (limited to 'arch/parisc/include')
| -rw-r--r-- | arch/parisc/include/uapi/asm/mman.h | 29 |
1 files changed, 14 insertions, 15 deletions
diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h index 22133a6a506e..68c44f99bc93 100644 --- a/arch/parisc/include/uapi/asm/mman.h +++ b/arch/parisc/include/uapi/asm/mman.h @@ -49,6 +49,19 @@ #define MADV_DONTFORK 10 /* don't inherit across fork */ #define MADV_DOFORK 11 /* do inherit across fork */ +#define MADV_MERGEABLE 12 /* KSM may merge identical pages */ +#define MADV_UNMERGEABLE 13 /* KSM may not merge identical pages */ + +#define MADV_HUGEPAGE 14 /* Worth backing with hugepages */ +#define MADV_NOHUGEPAGE 15 /* Not worth backing with hugepages */ + +#define MADV_DONTDUMP 16 /* Explicity exclude from the core dump, + overrides the coredump filter bits */ +#define MADV_DODUMP 17 /* Clear the MADV_NODUMP flag */ + +#define MADV_WIPEONFORK 18 /* Zero memory on fork, child only */ +#define MADV_KEEPONFORK 19 /* Undo MADV_WIPEONFORK */ + #define MADV_COLD 20 /* deactivate these pages */ #define MADV_PAGEOUT 21 /* reclaim these pages */ @@ -57,27 +70,13 @@ #define MADV_DONTNEED_LOCKED 24 /* like DONTNEED, but drop locked pages too */ -#define MADV_MERGEABLE 65 /* KSM may merge identical pages */ -#define MADV_UNMERGEABLE 66 /* KSM may not merge identical pages */ - -#define MADV_HUGEPAGE 67 /* Worth backing with hugepages */ -#define MADV_NOHUGEPAGE 68 /* Not worth backing with hugepages */ - -#define MADV_DONTDUMP 69 /* Explicity exclude from the core dump, - overrides the coredump filter bits */ -#define MADV_DODUMP 70 /* Clear the MADV_NODUMP flag */ - -#define MADV_WIPEONFORK 71 /* Zero memory on fork, child only */ -#define MADV_KEEPONFORK 72 /* Undo MADV_WIPEONFORK */ - -#define MADV_COLLAPSE 73 /* Synchronous hugepage collapse */ +#define MADV_COLLAPSE 25 /* Synchronous hugepage collapse */ #define MADV_HWPOISON 100 /* poison a page for testing */ #define MADV_SOFT_OFFLINE 101 /* soft offline page for testing */ /* compatibility flags */ #define MAP_FILE 0 -#define MAP_VARIABLE 0 #define PKEY_DISABLE_ACCESS 0x1 #define PKEY_DISABLE_WRITE 0x2 |