[PATCH] keys: sort out key quota system

Add the ability for key creation to overrun the user's quota in some
circumstances - notably when a session keyring is created and assigned to a
process that didn't previously have one.

This means it's still possible to log in, should PAM require the creation of a
new session keyring, and fix an overburdened key quota.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/security/keys/internal.h b/security/keys/internal.h
index e066e60..3c2877f 100644
--- a/security/keys/internal.h
+++ b/security/keys/internal.h
@@ -99,7 +99,8 @@
 extern struct key *request_key_and_link(struct key_type *type,
 					const char *description,
 					const char *callout_info,
-					struct key *dest_keyring);
+					struct key *dest_keyring,
+					unsigned long flags);
 
 /*
  * request_key authorisation