redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

ring-buffer: rb_per_cpu_empty() can return boolean 

Makes rb_per_cpu_empty() return bool to improve readability.

No functional change.

Link: http://lkml.kernel.org/r/1443537816-5788-6-git-send-email-bywxiaobai@163.com

Signed-off-by: Yaowei Bai <bywxiaobai@163.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
hifive-unleashed-5.1
Yaowei Bai 2015-09-29 22:43:33 +08:00 committed by Steven Rostedt
parent 3d4e204d81
commit da58834cf2
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
kernel/trace/ring_buffer.c
View File

@ -3039,7 +3039,7 @@ int ring_buffer_write(struct ring_buffer *buffer,
}
EXPORT_SYMBOL_GPL(ring_buffer_write);
static int rb_per_cpu_empty(struct ring_buffer_per_cpu *cpu_buffer)
static bool rb_per_cpu_empty(struct ring_buffer_per_cpu *cpu_buffer)
{
struct buffer_page *reader = cpu_buffer->reader_page;
struct buffer_page *head = rb_set_head_page(cpu_buffer);
@ -3047,7 +3047,7 @@ static int rb_per_cpu_empty(struct ring_buffer_per_cpu *cpu_buffer)
/* In case of error, head will be NULL */
if (unlikely(!head))
return 1;
return true;
return reader->read == rb_page_commit(reader) &&
(commit == reader ||