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authorAndrea Bastoni <bastoni@cs.unc.edu>2010-05-30 19:16:45 -0400
committerAndrea Bastoni <bastoni@cs.unc.edu>2010-05-30 19:16:45 -0400
commitada47b5fe13d89735805b566185f4885f5a3f750 (patch)
tree644b88f8a71896307d71438e9b3af49126ffb22b /arch/cris/kernel/sys_cris.c
parent43e98717ad40a4ae64545b5ba047c7b86aa44f4f (diff)
parent3280f21d43ee541f97f8cda5792150d2dbec20d5 (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.c124
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 */
30static inline long
31do_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(&current->mm->mmap_sem);
45 error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
46 up_write(&current->mm->mmap_sem);
47
48 if (file)
49 fput(file);
50out:
51 return error;
52}
53
54asmlinkage 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);
68out:
69 return err;
70}
71
72asmlinkage long 29asmlinkage long
73sys_mmap2(unsigned long addr, unsigned long len, unsigned long prot, 30sys_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
85asmlinkage 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}