From: Oleg Nesterov <oleg@redhat.com>
Date: Sun, 6 Mar 2011 17:02:37 +0000 (+0100)
Subject: exec: introduce struct user_arg_ptr
X-Git-Tag: v3.0-rc1~352^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ba2d01629d0d167598cfea85adc7926822bbfc45;p=pandora-kernel.git

exec: introduce struct user_arg_ptr

No functional changes, preparation.

Introduce struct user_arg_ptr, change do_execve() paths to use it
instead of "char __user * const __user *argv".

This makes the argv/envp arguments opaque, we are ready to handle the
compat case which needs argv pointing to compat_uptr_t.

Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Tested-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
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