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Commit c011c41f authored by Michael Wang's avatar Michael Wang Committed by Paul E. McKenney
Browse files

rcu: Replace the old interface with the new one 



This patch removed the old RCU debugfs interface and replaced it with
the new one.

Signed-off-by: default avatarMichael Wang <wangyun@linux.vnet.ibm.com>
Signed-off-by: default avatarPaul E. McKenney <paulmck@linux.vnet.ibm.com>
parent 51d0f16d

kernel/rcutree_trace.c

+24 −124
Original line number Diff line number Diff line
@@ -148,53 +148,27 @@ static void print_one_rcu_data(struct seq_file *m, struct rcu_data *rdp) 
		   rdp->n_cbs_invoked, rdp->n_cbs_orphaned, rdp->n_cbs_adopted);

}



static int show_rcudata(struct seq_file *m, void *unused)

{

	int cpu;

	struct rcu_state *rsp;



	for_each_rcu_flavor(rsp) {

		seq_printf(m, "%s:\n", rsp->name);

		for_each_possible_cpu(cpu)

			print_one_rcu_data(m, per_cpu_ptr(rsp->rda, cpu));

	}

	return 0;

}



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

{

	return single_open(file, show_rcudata, NULL);

}



static const struct file_operations rcudata_fops = {

	.owner = THIS_MODULE,

	.open = rcudata_open,

	.read = seq_read,

	.llseek = seq_lseek,

	.release = single_release,

};



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

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

{

	print_one_rcu_data(m, (struct rcu_data *)v);

	return 0;

}



static const struct seq_operations new_rcudate_op = {

static const struct seq_operations rcudate_op = {

	.start = r_start,

	.next  = r_next,

	.stop  = r_stop,

	.show  = new_show_rcudata,

	.show  = show_rcudata,

};



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

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

{

	return r_open(inode, file, &new_rcudate_op);

	return r_open(inode, file, &rcudate_op);

}



static const struct file_operations new_rcudata_fops = {

static const struct file_operations rcudata_fops = {

	.owner = THIS_MODULE,

	.open = new_rcudata_open,

	.open = rcudata_open,

	.read = seq_read,

	.llseek = no_llseek,

	.release = seq_release,
@@ -234,40 +208,7 @@ static void print_one_rcu_data_csv(struct seq_file *m, struct rcu_data *rdp) 
		   rdp->n_cbs_invoked, rdp->n_cbs_orphaned, rdp->n_cbs_adopted);

}



static int show_rcudata_csv(struct seq_file *m, void *unused)

{

	int cpu;

	struct rcu_state *rsp;



	seq_puts(m, "\"CPU\",\"Online?\",\"c\",\"g\",\"pq\",\"pq\",");

	seq_puts(m, "\"dt\",\"dt nesting\",\"dt NMI nesting\",\"df\",");

	seq_puts(m, "\"of\",\"qll\",\"ql\",\"qs\"");

#ifdef CONFIG_RCU_BOOST

	seq_puts(m, "\"kt\",\"ktl\"");

#endif /* #ifdef CONFIG_RCU_BOOST */

	seq_puts(m, ",\"b\",\"ci\",\"co\",\"ca\"\n");

	for_each_rcu_flavor(rsp) {

		seq_printf(m, "\"%s:\"\n", rsp->name);

		for_each_possible_cpu(cpu)

			print_one_rcu_data_csv(m, per_cpu_ptr(rsp->rda, cpu));

	}

	return 0;

}



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

{

	return single_open(file, show_rcudata_csv, NULL);

}



static const struct file_operations rcudata_csv_fops = {

	.owner = THIS_MODULE,

	.open = rcudata_csv_open,

	.read = seq_read,

	.llseek = seq_lseek,

	.release = single_release,

};



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

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

{

	struct rcu_data *rdp = (struct rcu_data *)v;

	if (cpumask_first(cpu_possible_mask) == rdp->cpu) {
@@ -284,21 +225,21 @@ static int new_show_rcudata_csv(struct seq_file *m, void *v) 
	return 0;

}



static const struct seq_operations new_rcudate_csv_op = {

static const struct seq_operations rcudate_csv_op = {

	.start = r_start,

	.next  = r_next,

	.stop  = r_stop,

	.show  = new_show_rcudata_csv,

	.show  = show_rcudata_csv,

};



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

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

{

	return r_open(inode, file, &new_rcudate_csv_op);

	return r_open(inode, file, &rcudate_csv_op);

}



static const struct file_operations new_rcudata_csv_fops = {

static const struct file_operations rcudata_csv_fops = {

	.owner = THIS_MODULE,

	.open = new_rcudata_csv_open,

	.open = rcudata_csv_open,

	.read = seq_read,

	.llseek = no_llseek,

	.release = seq_release,
@@ -484,53 +425,27 @@ static void print_one_rcu_pending(struct seq_file *m, struct rcu_data *rdp) 
		   rdp->n_rp_need_nothing);

}



static int show_rcu_pending(struct seq_file *m, void *unused)

{

	int cpu;

	struct rcu_state *rsp;



	for_each_rcu_flavor(rsp) {

		seq_printf(m, "%s:\n", rsp->name);

		for_each_possible_cpu(cpu)

			print_one_rcu_pending(m, per_cpu_ptr(rsp->rda, cpu));

	}

	return 0;

}



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

{

	return single_open(file, show_rcu_pending, NULL);

}



static const struct file_operations rcu_pending_fops = {

	.owner = THIS_MODULE,

	.open = rcu_pending_open,

	.read = seq_read,

	.llseek = seq_lseek,

	.release = single_release,

};



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

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

{

	print_one_rcu_pending(m, (struct rcu_data *)v);

	return 0;

}



static const struct seq_operations new_rcu_pending_op = {

static const struct seq_operations rcu_pending_op = {

	.start = r_start,

	.next  = r_next,

	.stop  = r_stop,

	.show  = new_show_rcu_pending,

	.show  = show_rcu_pending,

};



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

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

{

	return r_open(inode, file, &new_rcu_pending_op);

	return r_open(inode, file, &rcu_pending_op);

}



static const struct file_operations new_rcu_pending_fops = {

static const struct file_operations rcu_pending_fops = {

	.owner = THIS_MODULE,

	.open = new_rcu_pending_open,

	.open = rcu_pending_open,

	.read = seq_read,

	.llseek = no_llseek,

	.release = seq_release,
@@ -577,17 +492,17 @@ static int __init rcutree_trace_init(void) 
			goto free_out;



			retval = debugfs_create_file("rcudata", 0444,

					rspdir, rsp, &new_rcudata_fops);

					rspdir, rsp, &rcudata_fops);

			if (!retval)

				goto free_out;



			retval = debugfs_create_file("rcudata.csv", 0444,

					rspdir, rsp, &new_rcudata_csv_fops);

					rspdir, rsp, &rcudata_csv_fops);

			if (!retval)

				goto free_out;



			retval = debugfs_create_file("rcu_pending", 0444,

					rspdir, rsp, &new_rcu_pending_fops);

					rspdir, rsp, &rcu_pending_fops);

			if (!retval)

				goto free_out;

	}
@@ -597,16 +512,6 @@ static int __init rcutree_trace_init(void) 
	if (!retval)

		goto free_out;



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

						NULL, &rcudata_fops);

	if (!retval)

		goto free_out;



	retval = debugfs_create_file("rcudata.csv", 0444, rcudir,

						NULL, &rcudata_csv_fops);

	if (!retval)

		goto free_out;



	if (rcu_boost_trace_create_file(rcudir))

		goto free_out;
@@ -619,11 +524,6 @@ static int __init rcutree_trace_init(void) 
	if (!retval)

		goto free_out;



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

						NULL, &rcu_pending_fops);

	if (!retval)

		goto free_out;



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

						NULL, &rcutorture_fops);

	if (!retval)