[for-next][PATCH 4/5] ring-buffer: Remove unnecessary cpumask_test_cpu
From: Steven Rostedt
Date: Mon Oct 19 2026 - 15:35:15 EST
From: Vincent Donnefort <vdonnefort@xxxxxxxxxx>
for_each_buffer_cpu() already iterates over buffer->cpumask. Remove the
unnecessary cpumask_test_cpu() found in ring_buffer_subbuf_order_set().
Link: https://patch.msgid.link/20260916152813.105082-3-vdonnefort@xxxxxxxxxx
Signed-off-by: Vincent Donnefort <vdonnefort@xxxxxxxxxx>
Signed-off-by: Steven Rostedt <rostedt@xxxxxxxxxxx>
---
kernel/trace/ring_buffer.c | 7 -------
1 file changed, 7 deletions(-)
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index 15e3b9938e0f..0068bd185945 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -7486,10 +7486,6 @@ int ring_buffer_subbuf_order_set(struct trace_buffer *buffer, int order)
/* Make sure all new buffers are allocated, before deleting the old ones */
for_each_buffer_cpu(buffer, cpu) {
-
- if (!cpumask_test_cpu(cpu, buffer->cpumask))
- continue;
-
cpu_buffer = buffer->buffers[cpu];
/* Update the number of pages to match the new size */
@@ -7516,9 +7512,6 @@ int ring_buffer_subbuf_order_set(struct trace_buffer *buffer, int order)
struct list_head old_pages;
unsigned long flags;
- if (!cpumask_test_cpu(cpu, buffer->cpumask))
- continue;
-
cpu_buffer = buffer->buffers[cpu];
raw_spin_lock_irqsave(&cpu_buffer->reader_lock, flags);
--
2.53.0