Messages in this thread Patch in this message | | | From | Qiujun Huang <> | Subject | [PATCH] ring-buffer: Drop unneeded check in ring_buffer_resize() | Date | Thu, 24 Dec 2020 22:46:34 +0800 |
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Remove the cpumask check, as we has done it at the beginning of the function. Also fix a typo. s/also the on the/also on the/
Signed-off-by: Qiujun Huang <hqjagain@gmail.com> --- kernel/trace/ring_buffer.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index ec08f948dd80..b8213581e119 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -2062,10 +2062,6 @@ int ring_buffer_resize(struct trace_buffer *buffer, unsigned long size, put_online_cpus(); } else { - /* Make sure this CPU has been initialized */ - if (!cpumask_test_cpu(cpu_id, buffer->cpumask)) - goto out; - cpu_buffer = buffer->buffers[cpu_id]; if (nr_pages == cpu_buffer->nr_pages) @@ -2583,7 +2579,7 @@ rb_move_tail(struct ring_buffer_per_cpu *cpu_buffer, * have filled up the buffer with events * from interrupts and such, and wrapped. * - * Note, if the tail page is also the on the + * Note, if the tail page is also on the * reader_page, we let it move out. */ if (unlikely((cpu_buffer->commit_page != -- 2.17.1
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