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authorMichael Wang <wangyun@linux.vnet.ibm.com>2012-10-08 16:59:19 +0800
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2012-11-08 11:55:45 -0800
commita608d84bdb832a86ad3fdb0767df31fcda9fe280 (patch)
tree75b3955c220d9fccb295cdefb5b31beae27315c9 /kernel/rcutree_trace.c
parent66b38bc52bd1e0d00987e23bf7153c46201ff2ba (diff)
downloadlinaro-lsk-a608d84bdb832a86ad3fdb0767df31fcda9fe280.tar.gz
rcu: split 'rcuhier' to each flavor
This patch add new 'rcuhier' to each flavor's folder, now we could use: 'cat /debugfs/rcu/rsp/rcuhier' to get the selected rsp info. 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.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/kernel/rcutree_trace.c b/kernel/rcutree_trace.c
index c90d2a917de..107997ecdee 100644
--- a/kernel/rcutree_trace.c
+++ b/kernel/rcutree_trace.c
@@ -316,6 +316,26 @@ static const struct file_operations rcuhier_fops = {
.release = single_release,
};
+static int new_show_rcuhier(struct seq_file *m, void *v)
+{
+ struct rcu_state *rsp = (struct rcu_state *)m->private;
+ print_one_rcu_state(m, rsp);
+ return 0;
+}
+
+static int new_rcuhier_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, new_show_rcuhier, inode->i_private);
+}
+
+static const struct file_operations new_rcuhier_fops = {
+ .owner = THIS_MODULE,
+ .open = new_rcuhier_open,
+ .read = seq_read,
+ .llseek = no_llseek,
+ .release = seq_release,
+};
+
static void show_one_rcugp(struct seq_file *m, struct rcu_state *rsp)
{
unsigned long flags;
@@ -494,6 +514,10 @@ static int __init rcutree_trace_init(void)
if (!retval)
goto free_out;
+ retval = debugfs_create_file("rcuhier", 0444,
+ rspdir, rsp, &new_rcuhier_fops);
+ if (!retval)
+ goto free_out;
}
retval = debugfs_create_file("rcubarrier", 0444, rcudir,