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Add MADV_COLLAPSE definition from linux v6.1

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  linux commit 7d8faaf155454f8798ec56404faca29a82689c77
  mm/madvise: introduce MADV_COLLAPSE sync hugepage collapse
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Michal Biesek 2023-08-11 23:38:17 +02:00
parent 7389355aae
commit 44f6a7125b
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3 changed files with 4 additions and 0 deletions
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1
libc/sysv/consts.sh
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@ -272,6 +272,7 @@ syscon madv MADV_PAGEOUT 21 21 127 127 127 127 127 127 # TODO
syscon madv MADV_POPULATE_READ 22 22 127 127 127 127 127 127 # TODO: add support ? syscon madv MADV_POPULATE_READ 22 22 127 127 127 127 127 127 # TODO: add support ?
syscon madv MADV_POPULATE_WRITE 23 23 127 127 127 127 127 127 # TODO: add support ? syscon madv MADV_POPULATE_WRITE 23 23 127 127 127 127 127 127 # TODO: add support ?
syscon madv MADV_DONTNEED_LOCKED 24 24 127 127 127 127 127 127 # TODO: add support ? syscon madv MADV_DONTNEED_LOCKED 24 24 127 127 127 127 127 127 # TODO: add support ?
syscon madv MADV_COLLAPSE 25 25 127 127 127 127 127 127 # TODO: add support ?
syscon madv MADV_DOFORK 11 11 127 127 127 127 127 127 # TODO(jart): what is it? syscon madv MADV_DOFORK 11 11 127 127 127 127 127 127 # TODO(jart): what is it?
syscon madv MADV_DONTDUMP 16 16 127 127 127 127 127 127 # see MAP_CONCEAL in OpenBSD; TODO(jart): what is it? syscon madv MADV_DONTDUMP 16 16 127 127 127 127 127 127 # see MAP_CONCEAL in OpenBSD; TODO(jart): what is it?
syscon madv MADV_DONTFORK 10 10 127 127 127 127 127 127 # TODO(jart): what is it? syscon madv MADV_DONTFORK 10 10 127 127 127 127 127 127 # TODO(jart): what is it?

2
libc/sysv/consts/MADV_COLLAPSE.S Normal file
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@ -0,0 +1,2 @@
#include "libc/sysv/consts/syscon.internal.h"
.syscon madv,MADV_COLLAPSE,25,25,127,127,127,127,127,127

1
libc/sysv/consts/madv.h
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@ -27,6 +27,7 @@ extern const unsigned MADV_PAGEOUT;
extern const unsigned MADV_POPULATE_READ; extern const unsigned MADV_POPULATE_READ;
extern const unsigned MADV_POPULATE_WRITE; extern const unsigned MADV_POPULATE_WRITE;
extern const unsigned MADV_DONTNEED_LOCKED; extern const unsigned MADV_DONTNEED_LOCKED;
extern const unsigned MADV_COLLAPSE;
#define MADV_NORMAL 0 #define MADV_NORMAL 0
#define MADV_RANDOM 1 #define MADV_RANDOM 1