MIPS: Reorder operations in stackframe.h for better scheduling

[mv-sheeva.git] / arch / alpha / kernel / osf_sys.c

diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
index 9a3334ae282e38345d177e060acc2021fdeda084..62619f25132f93018d3a7850dda6c91aee5d0eb2 100644 (file)
--- a/arch/alpha/kernel/osf_sys.c
+++ b/arch/alpha/kernel/osf_sys.c
@@ -178,25 +178,18 @@ SYSCALL_DEFINE6(osf_mmap, unsigned long, addr, unsigned long, len,
                unsigned long, prot, unsigned long, flags, unsigned long, fd,
                unsigned long, off)
 {
-       struct file *file = NULL;
-       unsigned long ret = -EBADF;
+       unsigned long ret = -EINVAL;
 
 #if 0
        if (flags & (_MAP_HASSEMAPHORE | _MAP_INHERIT | _MAP_UNALIGNED))
                printk("%s: unimplemented OSF mmap flags %04lx\n", 
                        current->comm, flags);
 #endif
-       if (!(flags & MAP_ANONYMOUS)) {
-               file = fget(fd);
-               if (!file)
-                       goto out;
-       }
-       flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
-       down_write(&current->mm->mmap_sem);
-       ret = do_mmap(file, addr, len, prot, flags, off);
-       up_write(&current->mm->mmap_sem);
-       if (file)
-               fput(file);
+       if ((off + PAGE_ALIGN(len)) < off)
+               goto out;
+       if (off & ~PAGE_MASK)
+               goto out;
+       ret = sys_mmap_pgoff(addr, len, prot, flags, fd, off >> PAGE_SHIFT);
  out:
        return ret;
 }