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authorMichael Wang <wangyun@linux.vnet.ibm.com>2012-09-20 08:51:08 +0800
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2012-11-08 11:50:19 -0800
commit5f4ee1fa16fa1bee673b75722ca43350a74fba36 (patch)
tree3457aab7bd188e79fbbb0b54b11125c9e62b3c6b /kernel/rcutree_trace.c
parentc011c41f11c4bf9b0c8d489a458770c24aeb2ebd (diff)
downloadlinaro-lsk-5f4ee1fa16fa1bee673b75722ca43350a74fba36.tar.gz
rcu: Remove the interface "rcudata.csv"
This patch removes the interface "rcudata.csv" since it is apparently not used. 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.c76
1 files changed, 0 insertions, 76 deletions
diff --git a/kernel/rcutree_trace.c b/kernel/rcutree_trace.c
index 0e2ab6427b6..bcc4865fea8 100644
--- a/kernel/rcutree_trace.c
+++ b/kernel/rcutree_trace.c
@@ -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)