diff options
author | Andrea Bastoni <bastoni@cs.unc.edu> | 2010-05-30 19:16:45 -0400 |
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committer | Andrea Bastoni <bastoni@cs.unc.edu> | 2010-05-30 19:16:45 -0400 |
commit | ada47b5fe13d89735805b566185f4885f5a3f750 (patch) | |
tree | 644b88f8a71896307d71438e9b3af49126ffb22b /arch/cris/kernel/sys_cris.c | |
parent | 43e98717ad40a4ae64545b5ba047c7b86aa44f4f (diff) | |
parent | 3280f21d43ee541f97f8cda5792150d2dbec20d5 (diff) |
Merge branch 'wip-2.6.34' into old-private-masterarchived-private-master
Diffstat (limited to 'arch/cris/kernel/sys_cris.c')
-rw-r--r-- | arch/cris/kernel/sys_cris.c | 124 |
1 files changed, 2 insertions, 122 deletions
diff --git a/arch/cris/kernel/sys_cris.c b/arch/cris/kernel/sys_cris.c index 2ad962c7e88e..7aa036ec78ff 100644 --- a/arch/cris/kernel/sys_cris.c +++ b/arch/cris/kernel/sys_cris.c | |||
@@ -26,130 +26,10 @@ | |||
26 | #include <asm/uaccess.h> | 26 | #include <asm/uaccess.h> |
27 | #include <asm/segment.h> | 27 | #include <asm/segment.h> |
28 | 28 | ||
29 | /* common code for old and new mmaps */ | ||
30 | static inline long | ||
31 | do_mmap2(unsigned long addr, unsigned long len, unsigned long prot, | ||
32 | unsigned long flags, unsigned long fd, unsigned long pgoff) | ||
33 | { | ||
34 | int error = -EBADF; | ||
35 | struct file * file = NULL; | ||
36 | |||
37 | flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); | ||
38 | if (!(flags & MAP_ANONYMOUS)) { | ||
39 | file = fget(fd); | ||
40 | if (!file) | ||
41 | goto out; | ||
42 | } | ||
43 | |||
44 | down_write(¤t->mm->mmap_sem); | ||
45 | error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff); | ||
46 | up_write(¤t->mm->mmap_sem); | ||
47 | |||
48 | if (file) | ||
49 | fput(file); | ||
50 | out: | ||
51 | return error; | ||
52 | } | ||
53 | |||
54 | asmlinkage unsigned long old_mmap(unsigned long __user *args) | ||
55 | { | ||
56 | unsigned long buffer[6]; | ||
57 | int err = -EFAULT; | ||
58 | |||
59 | if (copy_from_user(&buffer, args, sizeof(buffer))) | ||
60 | goto out; | ||
61 | |||
62 | err = -EINVAL; | ||
63 | if (buffer[5] & ~PAGE_MASK) /* verify that offset is on page boundary */ | ||
64 | goto out; | ||
65 | |||
66 | err = do_mmap2(buffer[0], buffer[1], buffer[2], buffer[3], | ||
67 | buffer[4], buffer[5] >> PAGE_SHIFT); | ||
68 | out: | ||
69 | return err; | ||
70 | } | ||
71 | |||
72 | asmlinkage long | 29 | asmlinkage long |
73 | sys_mmap2(unsigned long addr, unsigned long len, unsigned long prot, | 30 | sys_mmap2(unsigned long addr, unsigned long len, unsigned long prot, |
74 | unsigned long flags, unsigned long fd, unsigned long pgoff) | 31 | unsigned long flags, unsigned long fd, unsigned long pgoff) |
75 | { | 32 | { |
76 | return do_mmap2(addr, len, prot, flags, fd, pgoff); | 33 | /* bug(?): 8Kb pages here */ |
77 | } | 34 | return sys_mmap_pgoff(addr, len, prot, flags, fd, pgoff); |
78 | |||
79 | /* | ||
80 | * sys_ipc() is the de-multiplexer for the SysV IPC calls.. | ||
81 | * | ||
82 | * This is really horribly ugly. (same as arch/i386) | ||
83 | */ | ||
84 | |||
85 | asmlinkage int sys_ipc (uint call, int first, int second, | ||
86 | int third, void __user *ptr, long fifth) | ||
87 | { | ||
88 | int version, ret; | ||
89 | |||
90 | version = call >> 16; /* hack for backward compatibility */ | ||
91 | call &= 0xffff; | ||
92 | |||
93 | switch (call) { | ||
94 | case SEMOP: | ||
95 | return sys_semtimedop (first, (struct sembuf __user *)ptr, second, NULL); | ||
96 | case SEMTIMEDOP: | ||
97 | return sys_semtimedop(first, (struct sembuf __user *)ptr, second, | ||
98 | (const struct timespec __user *)fifth); | ||
99 | |||
100 | case SEMGET: | ||
101 | return sys_semget (first, second, third); | ||
102 | case SEMCTL: { | ||
103 | union semun fourth; | ||
104 | if (!ptr) | ||
105 | return -EINVAL; | ||
106 | if (get_user(fourth.__pad, (void * __user *) ptr)) | ||
107 | return -EFAULT; | ||
108 | return sys_semctl (first, second, third, fourth); | ||
109 | } | ||
110 | |||
111 | case MSGSND: | ||
112 | return sys_msgsnd (first, (struct msgbuf __user *) ptr, | ||
113 | second, third); | ||
114 | case MSGRCV: | ||
115 | switch (version) { | ||
116 | case 0: { | ||
117 | struct ipc_kludge tmp; | ||
118 | if (!ptr) | ||
119 | return -EINVAL; | ||
120 | |||
121 | if (copy_from_user(&tmp, | ||
122 | (struct ipc_kludge __user *) ptr, | ||
123 | sizeof (tmp))) | ||
124 | return -EFAULT; | ||
125 | return sys_msgrcv (first, tmp.msgp, second, | ||
126 | tmp.msgtyp, third); | ||
127 | } | ||
128 | default: | ||
129 | return sys_msgrcv (first, | ||
130 | (struct msgbuf __user *) ptr, | ||
131 | second, fifth, third); | ||
132 | } | ||
133 | case MSGGET: | ||
134 | return sys_msgget ((key_t) first, second); | ||
135 | case MSGCTL: | ||
136 | return sys_msgctl (first, second, (struct msqid_ds __user *) ptr); | ||
137 | |||
138 | case SHMAT: { | ||
139 | ulong raddr; | ||
140 | ret = do_shmat (first, (char __user *) ptr, second, &raddr); | ||
141 | if (ret) | ||
142 | return ret; | ||
143 | return put_user (raddr, (ulong __user *) third); | ||
144 | } | ||
145 | case SHMDT: | ||
146 | return sys_shmdt ((char __user *)ptr); | ||
147 | case SHMGET: | ||
148 | return sys_shmget (first, second, third); | ||
149 | case SHMCTL: | ||
150 | return sys_shmctl (first, second, | ||
151 | (struct shmid_ds __user *) ptr); | ||
152 | default: | ||
153 | return -ENOSYS; | ||
154 | } | ||
155 | } | 35 | } |