diff options
Diffstat (limited to 'arch/s390/kernel/sys_s390.c')
-rw-r--r-- | arch/s390/kernel/sys_s390.c | 30 |
1 files changed, 6 insertions, 24 deletions
diff --git a/arch/s390/kernel/sys_s390.c b/arch/s390/kernel/sys_s390.c index 86a74c9c9e63..b2563509b5a9 100644 --- a/arch/s390/kernel/sys_s390.c +++ b/arch/s390/kernel/sys_s390.c | |||
@@ -33,13 +33,12 @@ | |||
33 | #include "entry.h" | 33 | #include "entry.h" |
34 | 34 | ||
35 | /* | 35 | /* |
36 | * Perform the select(nd, in, out, ex, tv) and mmap() system | 36 | * Perform the mmap() system call. Linux for S/390 isn't able to handle more |
37 | * calls. Linux for S/390 isn't able to handle more than 5 | 37 | * than 5 system call parameters, so this system call uses a memory block |
38 | * system call parameters, so these system calls used a memory | 38 | * for parameter passing. |
39 | * block for parameter passing.. | ||
40 | */ | 39 | */ |
41 | 40 | ||
42 | struct mmap_arg_struct { | 41 | struct s390_mmap_arg_struct { |
43 | unsigned long addr; | 42 | unsigned long addr; |
44 | unsigned long len; | 43 | unsigned long len; |
45 | unsigned long prot; | 44 | unsigned long prot; |
@@ -48,9 +47,9 @@ struct mmap_arg_struct { | |||
48 | unsigned long offset; | 47 | unsigned long offset; |
49 | }; | 48 | }; |
50 | 49 | ||
51 | SYSCALL_DEFINE1(mmap2, struct mmap_arg_struct __user *, arg) | 50 | SYSCALL_DEFINE1(mmap2, struct s390_mmap_arg_struct __user *, arg) |
52 | { | 51 | { |
53 | struct mmap_arg_struct a; | 52 | struct s390_mmap_arg_struct a; |
54 | int error = -EFAULT; | 53 | int error = -EFAULT; |
55 | 54 | ||
56 | if (copy_from_user(&a, arg, sizeof(a))) | 55 | if (copy_from_user(&a, arg, sizeof(a))) |
@@ -60,23 +59,6 @@ out: | |||
60 | return error; | 59 | return error; |
61 | } | 60 | } |
62 | 61 | ||
63 | SYSCALL_DEFINE1(s390_old_mmap, struct mmap_arg_struct __user *, arg) | ||
64 | { | ||
65 | struct mmap_arg_struct a; | ||
66 | long error = -EFAULT; | ||
67 | |||
68 | if (copy_from_user(&a, arg, sizeof(a))) | ||
69 | goto out; | ||
70 | |||
71 | error = -EINVAL; | ||
72 | if (a.offset & ~PAGE_MASK) | ||
73 | goto out; | ||
74 | |||
75 | error = sys_mmap_pgoff(a.addr, a.len, a.prot, a.flags, a.fd, a.offset >> PAGE_SHIFT); | ||
76 | out: | ||
77 | return error; | ||
78 | } | ||
79 | |||
80 | /* | 62 | /* |
81 | * sys_ipc() is the de-multiplexer for the SysV IPC calls.. | 63 | * sys_ipc() is the de-multiplexer for the SysV IPC calls.. |
82 | * | 64 | * |