diff options
| author | Anton Altaparmakov <aia21@cantab.net> | 2005-06-23 11:26:22 +0100 |
|---|---|---|
| committer | Anton Altaparmakov <aia21@cantab.net> | 2005-06-23 11:26:22 +0100 |
| commit | 3357d4c75f1fb67e7304998c4ad4e9a9fed66fa4 (patch) | |
| tree | ceba46966a5a1112a05d257d8ecb25ae5eee95e0 /arch/um/sys-x86_64 | |
| parent | 364f6c717deef4a3ac4982e670fa9846b43cd060 (diff) | |
| parent | ee98689be1b054897ff17655008c3048fe88be94 (diff) | |
| download | kernel_samsung_tuna-3357d4c75f1fb67e7304998c4ad4e9a9fed66fa4.zip kernel_samsung_tuna-3357d4c75f1fb67e7304998c4ad4e9a9fed66fa4.tar.gz kernel_samsung_tuna-3357d4c75f1fb67e7304998c4ad4e9a9fed66fa4.tar.bz2 | |
Automatic merge with /usr/src/ntfs-2.6.git.
Diffstat (limited to 'arch/um/sys-x86_64')
| -rw-r--r-- | arch/um/sys-x86_64/Makefile | 2 | ||||
| -rw-r--r-- | arch/um/sys-x86_64/unmap.c | 25 |
2 files changed, 27 insertions, 0 deletions
diff --git a/arch/um/sys-x86_64/Makefile b/arch/um/sys-x86_64/Makefile index 608466a..2bc6f68 100644 --- a/arch/um/sys-x86_64/Makefile +++ b/arch/um/sys-x86_64/Makefile @@ -29,3 +29,5 @@ thunk.S-dir = lib module.c-dir = kernel subdir- := util + +include arch/um/scripts/Makefile.unmap diff --git a/arch/um/sys-x86_64/unmap.c b/arch/um/sys-x86_64/unmap.c new file mode 100644 index 0000000..bc7094c --- /dev/null +++ b/arch/um/sys-x86_64/unmap.c @@ -0,0 +1,25 @@ +/* + * Copyright (C) 2000 Jeff Dike (jdike@karaya.com) + * Licensed under the GPL + */ + +#include <linux/mman.h> +#include <asm/unistd.h> + +static int errno; + +static inline _syscall2(int,munmap,void *,start,size_t,len) +static inline _syscall6(void *,mmap,void *,addr,size_t,len,int,prot,int,flags,int,fd,off_t,offset) +int switcheroo(int fd, int prot, void *from, void *to, int size) +{ + if(munmap(to, size) < 0){ + return(-1); + } + if(mmap(to, size, prot, MAP_SHARED | MAP_FIXED, fd, 0) != to){ + return(-1); + } + if(munmap(from, size) < 0){ + return(-1); + } + return(0); +} |