Messages in this thread Patch in this message | | | From | Yaowei Bai <> | Subject | [PATCH 5/8] kernel/ring_buffer: rb_per_cpu_empty can be boolean | Date | Tue, 29 Sep 2015 22:43:33 +0800 |
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This patch makes rb_per_cpu_empty return bool to improve readability.
No functional change.
Signed-off-by: Yaowei Bai <bywxiaobai@163.com> --- kernel/trace/ring_buffer.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index fc9ce12..a228789 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 || -- 1.9.1
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