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authorAl Viro <viro@zeniv.linux.org.uk>2009-11-30 17:37:04 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2009-12-11 06:44:29 -0500
commitf8b7256096a20436f6d0926747e3ac3d64c81d24 (patch)
tree18bcabd1de263bd2d0f8d6b763bde8b037716c5c /arch/sh
parent0067bd8a55862ac9dd212bd1c4f6f5bff1ca1301 (diff)
Unify sys_mmap*
New helper - sys_mmap_pgoff(); switch syscalls to using it. Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch/sh')
-rw-r--r--arch/sh/kernel/sys_sh.c28
1 files changed, 2 insertions, 26 deletions
diff --git a/arch/sh/kernel/sys_sh.c b/arch/sh/kernel/sys_sh.c
index 8aa5d1ceaf14..71399cde03b5 100644
--- a/arch/sh/kernel/sys_sh.c
+++ b/arch/sh/kernel/sys_sh.c
@@ -28,37 +28,13 @@
28#include <asm/cacheflush.h> 28#include <asm/cacheflush.h>
29#include <asm/cachectl.h> 29#include <asm/cachectl.h>
30 30
31static inline long
32do_mmap2(unsigned long addr, unsigned long len, unsigned long prot,
33 unsigned long flags, int fd, unsigned long pgoff)
34{
35 int error = -EBADF;
36 struct file *file = NULL;
37
38 flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
39 if (!(flags & MAP_ANONYMOUS)) {
40 file = fget(fd);
41 if (!file)
42 goto out;
43 }
44
45 down_write(&current->mm->mmap_sem);
46 error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
47 up_write(&current->mm->mmap_sem);
48
49 if (file)
50 fput(file);
51out:
52 return error;
53}
54
55asmlinkage int old_mmap(unsigned long addr, unsigned long len, 31asmlinkage int old_mmap(unsigned long addr, unsigned long len,
56 unsigned long prot, unsigned long flags, 32 unsigned long prot, unsigned long flags,
57 int fd, unsigned long off) 33 int fd, unsigned long off)
58{ 34{
59 if (off & ~PAGE_MASK) 35 if (off & ~PAGE_MASK)
60 return -EINVAL; 36 return -EINVAL;
61 return do_mmap2(addr, len, prot, flags, fd, off>>PAGE_SHIFT); 37 return sys_mmap_pgoff(addr, len, prot, flags, fd, off>>PAGE_SHIFT);
62} 38}
63 39
64asmlinkage long sys_mmap2(unsigned long addr, unsigned long len, 40asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
@@ -74,7 +50,7 @@ asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
74 50
75 pgoff >>= PAGE_SHIFT - 12; 51 pgoff >>= PAGE_SHIFT - 12;
76 52
77 return do_mmap2(addr, len, prot, flags, fd, pgoff); 53 return sys_mmap_pgoff(addr, len, prot, flags, fd, pgoff);
78} 54}
79 55
80/* 56/*