Commit 5f4ee1fa authored by Michael Wang's avatar Michael Wang Committed by Paul E. McKenney
Browse files

rcu: Remove the interface "rcudata.csv" 



This patch removes the interface "rcudata.csv" since it is apparently
not used.

Signed-off-by: default avatarMichael Wang <wangyun@linux.vnet.ibm.com>
Signed-off-by: default avatarPaul E. McKenney <paulmck@linux.vnet.ibm.com>
parent c011c41f

kernel/rcutree_trace.c

+0 −76
Original line number Diff line number Diff line
@@ -174,77 +174,6 @@ static const struct file_operations rcudata_fops = { 
	.release = seq_release,

};



static void print_one_rcu_data_csv(struct seq_file *m, struct rcu_data *rdp)

{

	if (!rdp->beenonline)

		return;

	seq_printf(m, "%d,%s,%lu,%lu,%d,%d",

		   rdp->cpu,

		   cpu_is_offline(rdp->cpu) ? "\"N\"" : "\"Y\"",

		   rdp->completed, rdp->gpnum,

		   rdp->passed_quiesce, rdp->qs_pending);

	seq_printf(m, ",%d,%llx,%d,%lu",

		   atomic_read(&rdp->dynticks->dynticks),

		   rdp->dynticks->dynticks_nesting,

		   rdp->dynticks->dynticks_nmi_nesting,

		   rdp->dynticks_fqs);

	seq_printf(m, ",%lu", rdp->offline_fqs);

	seq_printf(m, ",%ld,%ld,\"%c%c%c%c\"", rdp->qlen_lazy, rdp->qlen,

		   ".N"[rdp->nxttail[RCU_NEXT_READY_TAIL] !=

			rdp->nxttail[RCU_NEXT_TAIL]],

		   ".R"[rdp->nxttail[RCU_WAIT_TAIL] !=

			rdp->nxttail[RCU_NEXT_READY_TAIL]],

		   ".W"[rdp->nxttail[RCU_DONE_TAIL] !=

			rdp->nxttail[RCU_WAIT_TAIL]],

		   ".D"[&rdp->nxtlist != rdp->nxttail[RCU_DONE_TAIL]]);

#ifdef CONFIG_RCU_BOOST

	seq_printf(m, ",%d,\"%c\"",

		   per_cpu(rcu_cpu_has_work, rdp->cpu),

		   convert_kthread_status(per_cpu(rcu_cpu_kthread_status,

					  rdp->cpu)));

#endif /* #ifdef CONFIG_RCU_BOOST */

	seq_printf(m, ",%ld", rdp->blimit);

	seq_printf(m, ",%lu,%lu,%lu\n",

		   rdp->n_cbs_invoked, rdp->n_cbs_orphaned, rdp->n_cbs_adopted);

}



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) {

		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");

	}



	print_one_rcu_data_csv(m, rdp);

	return 0;

}



static const struct seq_operations rcudate_csv_op = {

	.start = r_start,

	.next  = r_next,

	.stop  = r_stop,

	.show  = show_rcudata_csv,

};



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

{

	return r_open(inode, file, &rcudate_csv_op);

}



static const struct file_operations rcudata_csv_fops = {

	.owner = THIS_MODULE,

	.open = rcudata_csv_open,

	.read = seq_read,

	.llseek = no_llseek,

	.release = seq_release,

};



#ifdef CONFIG_RCU_BOOST



static void print_one_rcu_node_boost(struct seq_file *m, struct rcu_node *rnp)
@@ -496,11 +425,6 @@ static int __init rcutree_trace_init(void) 
			if (!retval)

				goto free_out;



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

					rspdir, rsp, &rcudata_csv_fops);

			if (!retval)

				goto free_out;



			retval = debugfs_create_file("rcu_pending", 0444,

					rspdir, rsp, &rcu_pending_fops);

			if (!retval)