[PATCH 4/6] ring-buffer: Remove trace_buffer::cpus
From: Vincent Donnefort
Date: Mon Aug 10 2026 - 09:20:01 EST
The 'cpus' field in struct trace_buffer became useless in commit
8e7b58c27b3c ("ring-buffer: Just update the subbuffers when changing their
allocation order"). Remove it
Fixes: 8e7b58c27b3c ("ring-buffer: Just update the subbuffers when changing their allocation order")
Signed-off-by: Vincent Donnefort <vdonnefort@xxxxxxxxxx>
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index ac5f5d9502dd..d128bda5b661 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -566,7 +566,6 @@ struct ring_buffer_per_cpu {
struct trace_buffer {
unsigned flags;
- int cpus;
atomic_t record_disabled;
atomic_t resizing;
cpumask_var_t cpumask;
@@ -2762,7 +2761,6 @@ static struct trace_buffer *alloc_buffer(unsigned long size, unsigned flags,
init_irq_work(&buffer->irq_work.work, rb_wake_up_waiters);
init_waitqueue_head(&buffer->irq_work.waiters);
- buffer->cpus = nr_cpu_ids;
bsize = sizeof(void *) * nr_cpu_ids;
buffer->buffers = kzalloc(ALIGN(bsize, cache_line_size()),
--
2.55.0.654.g21b8a5bc05-goog