From: Peter Zijlstra <a.p.zijlstra@chello.nl>

Add Peter's comment to Nick's patch.

Cc: Nick Piggin <npiggin@suse.de>
Cc: Petr Tesarik <ptesarik@suse.cz>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 fs/exec.c |    7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)

diff -puN fs/exec.c~exec-fix-remove_arg_zero-add-comment fs/exec.c
--- a/fs/exec.c~exec-fix-remove_arg_zero-add-comment
+++ a/fs/exec.c
@@ -982,9 +982,13 @@ void compute_creds(struct linux_binprm *
 	task_unlock(current);
 	security_bprm_post_apply_creds(bprm);
 }
-
 EXPORT_SYMBOL(compute_creds);
 
+/*
+ * Arguments are '\0' separated strings found at the location bprm->p
+ * points to; chop off the first by relocating brpm->p to right after
+ * the first '\0' encountered.
+ */
 void remove_arg_zero(struct linux_binprm *bprm)
 {
 	if (bprm->argc) {
@@ -1023,7 +1027,6 @@ void remove_arg_zero(struct linux_binprm
 		bprm->argc--;
 	}
 }
-
 EXPORT_SYMBOL(remove_arg_zero);
 
 /*
_