diff options
| author |   Michael Wang <wangyun@linux.vnet.ibm.com> | 2012-09-20 08:51:02 +0800 |
|---|---|---|
| committer |   Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2012-11-08 11:50:14 -0800 |
| commit | 573bcd40d221bd6d7cebf27dee120bd242f5feb5 (patch) | |
| tree | ef774ec2f2e21913963671d3a027e48c9ba33c8f /kernel/rcutree_trace.c | |
| parent | rcu: Instrument synchronize_rcu_expedited() for debugfs tracing (diff) | |
| download | linux-dev-573bcd40d221bd6d7cebf27dee120bd242f5feb5.tar.xz linux-dev-573bcd40d221bd6d7cebf27dee120bd242f5feb5.zip | |
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>
Diffstat (limited to 'kernel/rcutree_trace.c')
| -rw-r--r-- | kernel/rcutree_trace.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/kernel/rcutree_trace.c b/kernel/rcutree_trace.c index 693513bc50e6..62223a27f985 100644 --- a/kernel/rcutree_trace.c +++ b/kernel/rcutree_trace.c @@ -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) |