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 | */ | ||