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>

1 files changed, 3 insertions, 22 deletions

diff --git a/arch/score/kernel/sys_score.c b/arch/score/kernel/sys_score.c
index 001249469866..3d6a67dd628c 100644
--- a/arch/score/kernel/sys_score.c
+++ b/arch/score/kernel/sys_score.c
@@ -36,34 +36,15 @@ asmlinkage long
 sys_mmap2(unsigned long addr, unsigned long len, unsigned long prot,
           unsigned long flags, unsigned long fd, unsigned long pgoff)
 {
-        int error = -EBADF;
-        struct file *file = NULL;
-
-        if (pgoff & (~PAGE_MASK >> 12))
-                return -EINVAL;
-
-        flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
-        if (!(flags & MAP_ANONYMOUS)) {
-                file = fget(fd);
-                if (!file)
-                        return error;
-        }
-
-        down_write(&current->mm->mmap_sem);
-        error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
-        up_write(&current->mm->mmap_sem);
-
-        if (file)
-                fput(file);
-
-        return error;
+        return sys_mmap_pgoff(addr, len, prot, flags, fd, pgoff);
 }
 
 asmlinkage long
 sys_mmap(unsigned long addr, unsigned long len, unsigned long prot,
         unsigned long flags, unsigned long fd, off_t pgoff)
 {
-        return sys_mmap2(addr, len, prot, flags, fd, pgoff >> PAGE_SHIFT);
+        /* where's the alignment check? */
+        return sys_mmap_pgoff(addr, len, prot, flags, fd, pgoff >> PAGE_SHIFT);
 }
 
 asmlinkage long