From: Paul E. McKenney Date: Tue, 5 Jan 2010 00:04:02 +0000 (-0800) Subject: rcu: Give different levels of the rcu_node hierarchy distinct lockdep names X-Git-Tag: v2.6.34-rc1~265^2~31 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b6407e863934965cdc66cbc244d811ceeb6f4d77;p=pandora-kernel.git rcu: Give different levels of the rcu_node hierarchy distinct lockdep names Previously, each level of the rcu_node hierarchy had the same rather unimaginative name: "&rcu_node_class[i]". This makes lockdep diagnostics involving these lockdep classes less helpful than would be nice. This patch fixes this by giving each level of the rcu_node hierarchy a distinct name: "rcu_node_level_0", "rcu_node_level_1", and so on. This version of the patch includes improved diagnostics suggested by Josh Triplett and Peter Zijlstra. Signed-off-by: Paul E. McKenney Cc: laijs@cn.fujitsu.com Cc: dipankar@in.ibm.com Cc: mathieu.desnoyers@polymtl.ca Cc: josh@joshtriplett.org Cc: dvhltc@us.ibm.com Cc: niv@us.ibm.com Cc: peterz@infradead.org Cc: rostedt@goodmis.org Cc: Valdis.Kletnieks@vt.edu Cc: dhowells@redhat.com LKML-Reference: <12626498421830-git-send-email-> Signed-off-by: Ingo Molnar --- Reading git-diff-tree failed