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
Unified · Split
| @@ -3039,7 +3039,7 @@ int ring_buffer_write(struct ring_buffer *buffer, · 3038 unmodified lines | |||
| 3039 | } | 3039 | } |
| 3040 | EXPORT_SYMBOL_GPL(ring_buffer_write); | 3040 | EXPORT_SYMBOL_GPL(ring_buffer_write); |
| 3041 | 3041 | ||
| 3042 | static int rb_per_cpu_empty(struct ring_buffer_per_cpu *cpu_buffer) | 3042 | static bool rb_per_cpu_empty(struct ring_buffer_per_cpu *cpu_buffer) |
| 3043 | { | 3043 | { |
| 3044 | struct buffer_page *reader = cpu_buffer->reader_page; | 3044 | struct buffer_page *reader = cpu_buffer->reader_page; |
| 3045 | struct buffer_page *head = rb_set_head_page(cpu_buffer); | 3045 | 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) · 1 unmodified line | |||
| 3047 | 3047 | ||
| 3048 | /* In case of error, head will be NULL */ | 3048 | /* In case of error, head will be NULL */ |
| 3049 | if (unlikely(!head)) | 3049 | if (unlikely(!head)) |
| 3050 | return 1; | 3050 | return true; |
| 3051 | 3051 | ||
| 3052 | return reader->read == rb_page_commit(reader) && | 3052 | return reader->read == rb_page_commit(reader) && |
| 3053 | (commit == reader || | 3053 | (commit == reader || |