tree 7be4b0808ba9860f1d953b45120262a277866021
parent 7ac6cd653d7c31ad6b7bb5b88c549c4ebf628c34
author Al Viro <viro@zeniv.linux.org.uk> 1216084940 -0400
committer Al Viro <viro@zeniv.linux.org.uk> 1217119988 -0400

[PATCH] beginning of sysctl cleanup - ctl_table_set

New object: set of sysctls [currently - root and per-net-ns].
Contains: pointer to parent set, list of tables and "should I see this set?"
method (->is_seen(set)).
Current lists of tables are subsumed by that; net-ns contains such a beast.
->lookup() for ctl_table_root returns pointer to ctl_table_set instead of
that to ->list of that ctl_table_set.

[folded compile fixes by rdd for configs without sysctl]

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>