[for-next][PATCH 8/9] ring-buffer: Remove trace_buffer::cpus
From: Steven Rostedt
Date: Fri Aug 14 2026 - 08:47:44 EST
From: Vincent Donnefort <vdonnefort@xxxxxxxxxx>
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
Link: https://patch.msgid.link/20260813131152.3589632-9-vdonnefort@xxxxxxxxxx
Fixes: 8e7b58c27b3c ("ring-buffer: Just update the subbuffers when changing their allocation order")
Signed-off-by: Vincent Donnefort <vdonnefort@xxxxxxxxxx>
Signed-off-by: Steven Rostedt <rostedt@xxxxxxxxxxx>
---
kernel/trace/ring_buffer.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index 2204a121ef7e..f75aafc755bd 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -572,7 +572,6 @@ struct ring_buffer_per_cpu {
struct trace_buffer {
unsigned flags;
- int cpus;
atomic_t record_disabled;
atomic_t resizing;
cpumask_var_t cpumask;
@@ -2796,7 +2795,6 @@ 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()),
--
2.53.0