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authorQiujun Huang <hqjagain@gmail.com>2020-12-24 15:46:34 +0100
committerSteven Rostedt (VMware) <rostedt@goodmis.org>2021-02-02 23:02:06 +0100
commitc6358bacdcdb64eb75192a135b66d3d3e57ad2e5 (patch)
treeb7ccf8353fbafd3145e6630c5e7ce85eb8df705f
parentring-buffer: Remove cpu_buffer argument from the rb_inc_page() (diff)
downloadlinux-c6358bacdcdb64eb75192a135b66d3d3e57ad2e5.tar.xz
linux-c6358bacdcdb64eb75192a135b66d3d3e57ad2e5.zip
ring-buffer: Drop unneeded check in ring_buffer_resize()
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>
-rw-r--r--kernel/trace/ring_buffer.c6
1 files changed, 1 insertions, 5 deletions
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index 8fccee76a5f3..b9dad3500041 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -2059,10 +2059,6 @@ 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)
@@ -2580,7 +2576,7 @@ 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 !=