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| author | Yaowei Bai <bywxiaobai@163.com> | 2015-09-29 22:43:32 +0800 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2015-11-02 14:23:38 -0500 |
| commit | 3d4e204d81eec30abffe55d01912e07ce81eef12 (patch) | |
| tree | 13418a32742d938683cbbdfa2cf5b712a773d8eb /kernel | |
| parent | 06ca320952dc21c537055d2aa36a2c2e96a1b94d (diff) | |
| download | linux-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')
| -rw-r--r-- | kernel/trace/ring_buffer.c | 10 |
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); |