Add generic sys_old_mmap()

Add a generic implementation of the old mmap() syscall, which expects its
argument in a memory block and switch all architectures over to use it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Reviewed-by: H. Peter Anvin <hpa@zytor.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: James Morris <jmorris@namei.org>
Cc: Andreas Schwab <schwab@linux-m68k.org>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

arch/cris/kernel/sys_cris.c

@@ -26,24 +26,6 @@
 #include <asm/uaccess.h>
 #include <asm/segment.h>
 
-asmlinkage unsigned long old_mmap(unsigned long __user *args)
-{        
-	unsigned long buffer[6];
-	int err = -EFAULT;
-
-	if (copy_from_user(&buffer, args, sizeof(buffer)))
-		goto out;
-
-	err = -EINVAL;
-	if (buffer[5] & ~PAGE_MASK) /* verify that offset is on page boundary */
-		goto out;
-
-	err = sys_mmap_pgoff(buffer[0], buffer[1], buffer[2], buffer[3],
-                       buffer[4], buffer[5] >> PAGE_SHIFT);
-out:
-	return err;
-}
-
 asmlinkage long
 sys_mmap2(unsigned long addr, unsigned long len, unsigned long prot,
           unsigned long flags, unsigned long fd, unsigned long pgoff)