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Commit c25e557f authored by Michael Wang's avatar Michael Wang Committed by Paul E. McKenney
Browse files

rcu: split 'rcubarrier' to each flavor 



This patch add new 'rcubarrier' to each flavor's folder, now we could use:
	'cat /debugfs/rcu/rsp/rcubarrier'
to get the selected rsp info.

Signed-off-by: default avatarMichael Wang <wangyun@linux.vnet.ibm.com>
Signed-off-by: default avatarPaul E. McKenney <paulmck@linux.vnet.ibm.com>
parent 42c3533e

kernel/rcutree_trace.c

+27 −0
Original line number Diff line number Diff line
@@ -103,6 +103,28 @@ static const struct file_operations rcubarrier_fops = { 
	.release = single_release,

};



static int new_show_rcubarrier(struct seq_file *m, void *v)

{

	struct rcu_state *rsp = (struct rcu_state *)m->private;

	seq_printf(m, "bcc: %d nbd: %lu\n",

		   atomic_read(&rsp->barrier_cpu_count),

		   rsp->n_barrier_done);

	return 0;

}



static int new_rcubarrier_open(struct inode *inode, struct file *file)

{

	return single_open(file, new_show_rcubarrier, inode->i_private);

}



static const struct file_operations new_rcubarrier_fops = {

	.owner = THIS_MODULE,

	.open = new_rcubarrier_open,

	.read = seq_read,

	.llseek = no_llseek,

	.release = seq_release,

};



#ifdef CONFIG_RCU_BOOST



static char convert_kthread_status(unsigned int kthread_status)
@@ -432,6 +454,11 @@ static int __init rcutree_trace_init(void) 
					rspdir, rsp, &rcu_pending_fops);

			if (!retval)

				goto free_out;



			retval = debugfs_create_file("rcubarrier", 0444,

					rspdir, rsp, &new_rcubarrier_fops);

			if (!retval)

				goto free_out;

	}



	retval = debugfs_create_file("rcubarrier", 0444, rcudir,