The attached patch fixes the following problems in the ELF-FDPIC binfmt
driver:

 (1) elf_fdpic_map_file() should be passed an mm_struct pointer, not NULL.

 (2) do_mmap() should be called with the mmap_sem held.

 (3) mm_struct::end_brk doesn't exist in 2.6 (debugging only).

 (4) Avoid debugging warnings by casting certain values to unsigned long
     before printing them.
Signed-Off-By: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>