diff options
Diffstat (limited to 'arch/um/kernel/uaccess_user.c')
| -rw-r--r-- | arch/um/kernel/uaccess_user.c | 64 | 
1 files changed, 0 insertions, 64 deletions
diff --git a/arch/um/kernel/uaccess_user.c b/arch/um/kernel/uaccess_user.c deleted file mode 100644 index d035257ed0af..000000000000 --- a/arch/um/kernel/uaccess_user.c +++ /dev/null  | |||
| @@ -1,64 +0,0 @@ | |||
| 1 | /* | ||
| 2 | * Copyright (C) 2001 Chris Emerson (cemerson@chiark.greenend.org.uk) | ||
| 3 | * Copyright (C) 2001, 2002 Jeff Dike (jdike@karaya.com) | ||
| 4 | * Licensed under the GPL | ||
| 5 | */ | ||
| 6 | |||
| 7 | #include <setjmp.h> | ||
| 8 | #include <string.h> | ||
| 9 | |||
| 10 | /* These are here rather than tt/uaccess.c because skas mode needs them in | ||
| 11 | * order to do SIGBUS recovery when a tmpfs mount runs out of room. | ||
| 12 | */ | ||
| 13 | |||
| 14 | unsigned long __do_user_copy(void *to, const void *from, int n, | ||
| 15 | void **fault_addr, void **fault_catcher, | ||
| 16 | void (*op)(void *to, const void *from, | ||
| 17 | int n), int *faulted_out) | ||
| 18 | { | ||
| 19 | unsigned long *faddrp = (unsigned long *) fault_addr, ret; | ||
| 20 | |||
| 21 | sigjmp_buf jbuf; | ||
| 22 | *fault_catcher = &jbuf; | ||
| 23 | if(sigsetjmp(jbuf, 1) == 0){ | ||
| 24 | (*op)(to, from, n); | ||
| 25 | ret = 0; | ||
| 26 | *faulted_out = 0; | ||
| 27 | } | ||
| 28 | else { | ||
| 29 | ret = *faddrp; | ||
| 30 | *faulted_out = 1; | ||
| 31 | } | ||
| 32 | *fault_addr = NULL; | ||
| 33 | *fault_catcher = NULL; | ||
| 34 | return ret; | ||
| 35 | } | ||
| 36 | |||
| 37 | void __do_copy(void *to, const void *from, int n) | ||
| 38 | { | ||
| 39 | memcpy(to, from, n); | ||
| 40 | } | ||
| 41 | |||
| 42 | |||
| 43 | int __do_copy_to_user(void *to, const void *from, int n, | ||
| 44 | void **fault_addr, void **fault_catcher) | ||
| 45 | { | ||
| 46 | unsigned long fault; | ||
| 47 | int faulted; | ||
| 48 | |||
| 49 | fault = __do_user_copy(to, from, n, fault_addr, fault_catcher, | ||
| 50 | __do_copy, &faulted); | ||
| 51 | if(!faulted) return(0); | ||
| 52 | else return(n - (fault - (unsigned long) to)); | ||
| 53 | } | ||
| 54 | |||
| 55 | /* | ||
| 56 | * Overrides for Emacs so that we follow Linus's tabbing style. | ||
| 57 | * Emacs will notice this stuff at the end of the file and automatically | ||
| 58 | * adjust the settings for this buffer only. This must remain at the end | ||
| 59 | * of the file. | ||
| 60 | * --------------------------------------------------------------------------- | ||
| 61 | * Local variables: | ||
| 62 | * c-file-style: "linux" | ||
| 63 | * End: | ||
| 64 | */ | ||
