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authorYaowei Bai <bywxiaobai@163.com>2015-09-29 22:43:32 +0800
committerSteven Rostedt <rostedt@goodmis.org>2015-11-02 14:23:38 -0500
commit3d4e204d81eec30abffe55d01912e07ce81eef12 (patch)
tree13418a32742d938683cbbdfa2cf5b712a773d8eb /kernel/trace
parent06ca320952dc21c537055d2aa36a2c2e96a1b94d (diff)
downloadlinux-3d4e204d81eec30abffe55d01912e07ce81eef12.tar.bz2
ring_buffer: ring_buffer_empty{cpu}() can return boolean
Make ring_buffer_empty() and ring_buffer_empty_cpu() return bool. No functional change. Link: http://lkml.kernel.org/r/1443537816-5788-5-git-send-email-bywxiaobai@163.com Signed-off-by: Yaowei Bai <bywxiaobai@163.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace')
-rw-r--r--kernel/trace/ring_buffer.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index 26a948f3187f..fc9ce12666be 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -4267,7 +4267,7 @@ EXPORT_SYMBOL_GPL(ring_buffer_reset);
* rind_buffer_empty - is the ring buffer empty?
* @buffer: The ring buffer to test
*/
-int ring_buffer_empty(struct ring_buffer *buffer)
+bool ring_buffer_empty(struct ring_buffer *buffer)
{
struct ring_buffer_per_cpu *cpu_buffer;
unsigned long flags;
@@ -4285,10 +4285,10 @@ int ring_buffer_empty(struct ring_buffer *buffer)
local_irq_restore(flags);
if (!ret)
- return 0;
+ return false;
}
- return 1;
+ return true;
}
EXPORT_SYMBOL_GPL(ring_buffer_empty);
@@ -4297,7 +4297,7 @@ EXPORT_SYMBOL_GPL(ring_buffer_empty);
* @buffer: The ring buffer
* @cpu: The CPU buffer to test
*/
-int ring_buffer_empty_cpu(struct ring_buffer *buffer, int cpu)
+bool ring_buffer_empty_cpu(struct ring_buffer *buffer, int cpu)
{
struct ring_buffer_per_cpu *cpu_buffer;
unsigned long flags;
@@ -4305,7 +4305,7 @@ int ring_buffer_empty_cpu(struct ring_buffer *buffer, int cpu)
int ret;
if (!cpumask_test_cpu(cpu, buffer->cpumask))
- return 1;
+ return true;
cpu_buffer = buffer->buffers[cpu];
local_irq_save(flags);