ok, thanks. ________________________________ 发件人: Steven Rostedt <[email protected]> 发送时间: 2025年12月16日 4:30:31 收件人: Xiang Gao 抄送: [email protected]; [email protected]; [email protected]; [email protected]; [email protected]; [email protected]; [email protected]; [email protected]; [email protected]; [email protected]; [email protected]; [email protected]; 高翔 主题: [External Mail]Re: [PATCH v5] dma-buf: add some tracepoints to debug.
[外部邮件] 此邮件来源于小米公司外部，请谨慎处理。若对邮件安全性存疑，请将邮件转发给[email protected]进行反馈 On Mon, 1 Dec 2025 19:21:48 +0800 Xiang Gao <[email protected]> wrote: > --- a/drivers/dma-buf/dma-buf.c > +++ b/drivers/dma-buf/dma-buf.c > @@ -35,6 +35,17 @@ > > #include "dma-buf-sysfs-stats.h" > > +#define CREATE_TRACE_POINTS > +#include <trace/events/dma_buf.h> > + From a tracing point of view I'm OK with this patch, but this macro really needs a comment. -- Steve > +#define DMA_BUF_TRACE(FUNC, ...) \ > + do { \ > + if (FUNC##_enabled()) { \ > + guard(spinlock)(&dmabuf->name_lock); \ > + FUNC(__VA_ARGS__); \ > + } \ > + } while (0) > + > static inline int is_dma_buf_file(struct file *); > > static DEFINE_MUTEX(dmabuf_list_mutex);
