unify compat/native exec for v2.6.40

Linus,

please pull from

git://git.kernel.org/pub/scm/linux/kernel/git/oleg/misc.git exec_rm_compat

Unifies compat/native do_execve() code. Based on discussion with you and Kosaki.

Oleg Nesterov (4):
exec: introduce get_user_arg_ptr() helper
exec: introduce struct user_arg_ptr
exec: unify do_execve/compat_do_execve code
exec: document acct_arg_size()

 fs/compat.c             |  235 -----------------------------------------------
 fs/exec.c               |  125 ++++++++++++++++++++-----
 include/linux/binfmts.h |    4 -
 3 files changed, 100 insertions(+), 264 deletions(-)