leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

ring-buffer: Drop unneeded check in ring_buffer_resize()

Browse Source 
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/

Link: https://lkml.kernel.org/r/20201224144634.3210-1-hqjagain@gmail.com

Signed-off-by: Qiujun Huang <hqjagain@gmail.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
This commit is contained in:
Qiujun Huang
2020-12-24 22:46:34 +08:00
committed by Steven Rostedt (VMware)
parent 6689bed36c
commit c6358bacdc
1 changed files with 1 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
kernel/trace/ring_buffer.c
View File

@@ -2059,10 +2059,6 @@ int ring_buffer_resize(struct trace_buffer *buffer, unsigned long size,
put_online_cpus(); put_online_cpus();
} else { } else {
/* Make sure this CPU has been initialized */
if (!cpumask_test_cpu(cpu_id, buffer->cpumask))
goto out;
cpu_buffer = buffer->buffers[cpu_id]; cpu_buffer = buffer->buffers[cpu_id];
if (nr_pages == cpu_buffer->nr_pages) if (nr_pages == cpu_buffer->nr_pages)
@@ -2580,7 +2576,7 @@ rb_move_tail(struct ring_buffer_per_cpu *cpu_buffer,
* have filled up the buffer with events * have filled up the buffer with events
* from interrupts and such, and wrapped. * 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. * reader_page, we let it move out.
*/ */
if (unlikely((cpu_buffer->commit_page != if (unlikely((cpu_buffer->commit_page !=