[PATCH v2 3/3] tracing: Rename tracing_entries_fops to tracing_capacity_fops

[Vincent Donnefort <vdonnefort@google.com>]

Since commit 8a5f63637890 ("ring-buffer: Fix subbuf resize race with
ring buffer readers"), "capacity" refers to the memory available for
events, while "entries" refers to the number of events in a ring buffer.
As a consequence, rename trace_array::entries to capacity to align with
this convention.

While at it, rename also tracing_total_entries_fops. It is the aggragate
of all ring buffer capacities.

Signed-off-by: Vincent Donnefort <vdonnefort@google.com>
---
 kernel/trace/trace.c | 25 +++++++++++--------------
 1 file changed, 11 insertions(+), 14 deletions(-)

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 400d7a97e745..780c4987032b 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -5672,8 +5672,7 @@ tracing_syscall_buf_write(struct file *filp, const char __user *ubuf,
 }
 
 static ssize_t
-tracing_entries_read(struct file *filp, char __user *ubuf,
-		     size_t cnt, loff_t *ppos)
+tracing_capacity_read(struct file *filp, char __user *ubuf, size_t cnt, loff_t *ppos)
 {
 	struct inode *inode = file_inode(filp);
 	struct trace_array *tr = inode->i_private;
@@ -5720,8 +5719,7 @@ tracing_entries_read(struct file *filp, char __user *ubuf,
 }
 
 static ssize_t
-tracing_entries_write(struct file *filp, const char __user *ubuf,
-		      size_t cnt, loff_t *ppos)
+tracing_capacity_write(struct file *filp, const char __user *ubuf, size_t cnt, loff_t *ppos)
 {
 	struct inode *inode = file_inode(filp);
 	struct trace_array *tr = inode->i_private;
@@ -5748,8 +5746,7 @@ tracing_entries_write(struct file *filp, const char __user *ubuf,
 }
 
 static ssize_t
-tracing_total_entries_read(struct file *filp, char __user *ubuf,
-				size_t cnt, loff_t *ppos)
+tracing_total_capacity_read(struct file *filp, char __user *ubuf, size_t cnt, loff_t *ppos)
 {
 	struct trace_array *tr = filp->private_data;
 	char buf[64];
@@ -6600,10 +6597,10 @@ static const struct file_operations tracing_pipe_fops = {
 	.release	= tracing_release_pipe,
 };
 
-static const struct file_operations tracing_entries_fops = {
+static const struct file_operations tracing_capacity_fops = {
 	.open		= tracing_open_generic_tr,
-	.read		= tracing_entries_read,
-	.write		= tracing_entries_write,
+	.read		= tracing_capacity_read,
+	.write		= tracing_capacity_write,
 	.llseek		= generic_file_llseek,
 	.release	= tracing_release_generic_tr,
 };
@@ -6623,9 +6620,9 @@ static const struct file_operations tracing_buffer_meta_fops = {
 	.release	= tracing_seq_release,
 };
 
-static const struct file_operations tracing_total_entries_fops = {
+static const struct file_operations tracing_total_capacity_fops = {
 	.open		= tracing_open_generic_tr,
-	.read		= tracing_total_entries_read,
+	.read		= tracing_total_capacity_read,
 	.llseek		= generic_file_llseek,
 	.release	= tracing_release_generic_tr,
 };
@@ -7653,7 +7650,7 @@ tracing_init_tracefs_percpu(struct trace_array *tr, long cpu)
 				tr, cpu, &tracing_stats_fops);
 
 	trace_create_cpu_file("buffer_size_kb", TRACE_MODE_WRITE, d_cpu,
-				tr, cpu, &tracing_entries_fops);
+				tr, cpu, &tracing_capacity_fops);
 
 	if (tr->range_addr_start)
 		trace_create_cpu_file("buffer_meta", TRACE_MODE_READ, d_cpu,
@@ -8954,10 +8951,10 @@ init_tracer_tracefs(struct trace_array *tr, struct dentry *d_tracer)
 			  tr, &tracing_pipe_fops);
 
 	trace_create_file("buffer_size_kb", writable_mode, d_tracer,
-			  tr, &tracing_entries_fops);
+			  tr, &tracing_capacity_fops);
 
 	trace_create_file("buffer_total_size_kb", TRACE_MODE_READ, d_tracer,
-			  tr, &tracing_total_entries_fops);
+			  tr, &tracing_total_capacity_fops);
 
 	trace_create_file("trace_clock", writable_mode, d_tracer, tr,
 			  &trace_clock_fops);
-- 
2.55.0.979.g7e5102b832-goog