From 9dce3e2d1fca0298ce5ee3ec7f47d78e2e3f8b78 Mon Sep 17 00:00:00 2001 From: Vincent Donnefort Date: Wed, 16 Sep 2026 16:28:13 +0100 Subject: [PATCH] ring-buffer: Remove unnecessary cpumask_test_cpu 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@google.com Signed-off-by: Vincent Donnefort Signed-off-by: Steven Rostedt --- 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);