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Message-Id: <1351616713-26930-6-git-send-email-paulmck@linux.vnet.ibm.com>
Date: Tue, 30 Oct 2012 10:05:05 -0700
From: "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To: linux-kernel@...r.kernel.org
Cc: mingo@...e.hu, laijs@...fujitsu.com, dipankar@...ibm.com,
akpm@...ux-foundation.org, mathieu.desnoyers@...ymtl.ca,
josh@...htriplett.org, niv@...ibm.com, tglx@...utronix.de,
peterz@...radead.org, rostedt@...dmis.org, Valdis.Kletnieks@...edu,
dhowells@...hat.com, edumazet@...gle.com, darren@...art.com,
fweisbec@...il.com, sbw@....edu, patches@...aro.org,
Michael Wang <wangyun@...ux.vnet.ibm.com>,
"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Subject: [PATCH tip/core/rcu 06/14] rcu: Replace the old interface with the new one
From: Michael Wang <wangyun@...ux.vnet.ibm.com>
This patch removed the old RCU debugfs interface and replaced it with
the new one.
Signed-off-by: Michael Wang <wangyun@...ux.vnet.ibm.com>
Signed-off-by: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
---
kernel/rcutree_trace.c | 148 ++++++++----------------------------------------
1 files changed, 24 insertions(+), 124 deletions(-)
diff --git a/kernel/rcutree_trace.c b/kernel/rcutree_trace.c
index 8b24867..0e2ab64 100644
--- a/kernel/rcutree_trace.c
+++ b/kernel/rcutree_trace.c
@@ -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)
--
1.7.8
--
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