Commit-ID: 66b38bc52bd1e0d00987e23bf7153c46201ff2ba
Gitweb: http://git.kernel.org/tip/66b38bc52bd1e0d00987e23bf7153c46201ff2ba
Author: Michael Wang <wangyun@xxxxxxxxxxxxxxxxxx>
AuthorDate: Mon, 8 Oct 2012 16:59:18 +0800
Committer: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
CommitDate: Thu, 8 Nov 2012 11:55:44 -0800
rcu: split 'rcugp' to each flavor
This patch add new 'rcugp' to each flavor's folder, now we could use:
'cat /debugfs/rcu/rsp/rcugp'
to get the selected rsp info.
Signed-off-by: Michael Wang <wangyun@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
---
kernel/rcutree_trace.c | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/kernel/rcutree_trace.c b/kernel/rcutree_trace.c
index cae417d..c90d2a9 100644
--- a/kernel/rcutree_trace.c
+++ b/kernel/rcutree_trace.c
@@ -360,6 +360,26 @@ static const struct file_operations rcugp_fops = {
.release = single_release,
};
+static int new_show_rcugp(struct seq_file *m, void *v)
+{
+ struct rcu_state *rsp = (struct rcu_state *)m->private;
+ show_one_rcugp(m, rsp);
+ return 0;
+}
+
+static int new_rcugp_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, new_show_rcugp, inode->i_private);
+}
+
+static const struct file_operations new_rcugp_fops = {
+ .owner = THIS_MODULE,
+ .open = new_rcugp_open,
+ .read = seq_read,
+ .llseek = no_llseek,
+ .release = seq_release,
+};
+
static void print_one_rcu_pending(struct seq_file *m, struct rcu_data *rdp)
{
if (!rdp->beenonline)
@@ -468,6 +488,12 @@ static int __init rcutree_trace_init(void)
goto free_out;
}
#endif
+
+ retval = debugfs_create_file("rcugp", 0444,
+ rspdir, rsp, &new_rcugp_fops);
+ if (!retval)
+ goto free_out;
+
}
retval = debugfs_create_file("rcubarrier", 0444, rcudir,
--
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