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| author | Yaowei Bai <bywxiaobai@163.com> | 2015-09-29 22:43:33 +0800 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2015-11-02 14:24:27 -0500 |
| commit | da58834cf2fa83fe3885753009fecaa49a85f246 (patch) | |
| tree | ab92dac0f7734e083ac439eff80f13ee6f4b07ad /kernel/trace/ring_buffer.c | |
| parent | 3d4e204d81eec30abffe55d01912e07ce81eef12 (diff) | |
| download | blackbird-op-linux-da58834cf2fa83fe3885753009fecaa49a85f246.tar.gz blackbird-op-linux-da58834cf2fa83fe3885753009fecaa49a85f246.zip | |
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>
Diffstat (limited to 'kernel/trace/ring_buffer.c')
| -rw-r--r-- | kernel/trace/ring_buffer.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index fc9ce12666be..a22878923a30 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -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 || |
