From 6639607ed9deaed9ab3a1cc588f0288891ece2ac Mon Sep 17 00:00:00 2001
From: Thomas Graf <tgraf@suug.ch>
Date: Sat, 5 Nov 2005 21:14:13 +0100
Subject: [PATCH] [PKT_SCHED]: GRED: Use a central table definition change
 procedure

Introduces a function gred_change_table_def() acting as a central
point to change the table definition.

Adds missing validations for table definition: MAX_DPs > DPs > 0
and def_DP < DPs thus fixing possible invalid memory reference
oopses. Only root could do it but having a typo crashing the
machine is a bit hard.

Adds missing locking while changing the table definition, the
operation of changing the number of DPs and removing shadowed VQs
may not be interrupted by a dequeue.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
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