diff options
| author | Thomas Zimmermann <tzimmermann@suse.de> | 2025-02-25 11:43:10 +0100 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2025-02-25 11:43:10 +0100 |
| commit | 130377304ed09e54ff35a8974372498aad7059f3 (patch) | |
| tree | deac7244baf40d11bd3976416d6e1c656fad3ac7 /kernel/trace/trace.c | |
| parent | 40115947b59f2ca361a47615304dff0a2b69a2b4 (diff) | |
| parent | fb51bf02551958265b7116f6ba92752295c83c26 (diff) | |
Merge drm/drm-next into drm-misc-next
Backmerging to get fixes from v6.14-rc4.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Diffstat (limited to 'kernel/trace/trace.c')
| -rw-r--r-- | kernel/trace/trace.c | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 1496a5ac33ae..0e6d517e74e0 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -5977,8 +5977,6 @@ static int __tracing_resize_ring_buffer(struct trace_array *tr, ssize_t tracing_resize_ring_buffer(struct trace_array *tr, unsigned long size, int cpu_id) { - int ret; - guard(mutex)(&trace_types_lock); if (cpu_id != RING_BUFFER_ALL_CPUS) { @@ -5987,11 +5985,7 @@ ssize_t tracing_resize_ring_buffer(struct trace_array *tr, return -EINVAL; } - ret = __tracing_resize_ring_buffer(tr, size, cpu_id); - if (ret < 0) - ret = -ENOMEM; - - return ret; + return __tracing_resize_ring_buffer(tr, size, cpu_id); } static void update_last_data(struct trace_array *tr) @@ -8285,6 +8279,10 @@ static int tracing_buffers_mmap(struct file *filp, struct vm_area_struct *vma) struct trace_iterator *iter = &info->iter; int ret = 0; + /* Currently the boot mapped buffer is not supported for mmap */ + if (iter->tr->flags & TRACE_ARRAY_FL_BOOT) + return -ENODEV; + ret = get_snapshot_map(iter->tr); if (ret) return ret; |