Commit 573bcd40 authored Sep 20, 2012 by Michael Wang Committed by Paul E. McKenney Nov 08, 2012

rcu: Create directory for each flavor of rcu



This patch will create subdirectory according to each flavor of rcu, the new
structure will be:

	/debugfs/rcu/ -> rsp_0
		      -> rsp_1
		      -> ...

So we can go to '/debugfs/rcu/rsp_0' and get the cpu info of rsp_0 there.
The flavors of RCU are currently rcu_bh, rcu_preempt, and rcu_sched.

Signed-off-by: Michael Wang <wangyun@linux.vnet.ibm.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>

parent a30489c5

kernel/rcutree_trace.c

+8 −0

Original line number	Diff line number	Diff line
		@@ -446,12 +446,20 @@ static struct dentry *rcudir;

		static int __init rcutree_trace_init(void)
		{
		struct rcu_state *rsp;
		struct dentry *retval;
		struct dentry *rspdir;

		rcudir = debugfs_create_dir("rcu", NULL);
		if (!rcudir)
		goto free_out;

		for_each_rcu_flavor(rsp) {
		rspdir = debugfs_create_dir(rsp->name, rcudir);
		if (!rspdir)
		goto free_out;
		}

		retval = debugfs_create_file("rcubarrier", 0444, rcudir,
		NULL, &rcubarrier_fops);
		if (!retval)