Re: [Linaro-mm-sig] [PATCH] dma-buf: Delete the DMA-BUF attachment sysfs statistics

On Fri, Jul 09, 2021 at 10:10:24PM -0700, Hridya Valsaraju wrote:

The DMA-BUF attachment statistics form a subset of the DMA-BUF sysfs statistics that recently merged to the drm-misc tree. Since there has been a reported a performance regression due to the overhead of sysfs directory creation/teardown during dma_buf_attach()/dma_buf_detach(), this patch deletes the DMA-BUF attachment statistics from sysfs.

Fixes: bdb8d06dfefd (dmabuf: Add the capability to expose DMA-BUF stats in sysfs) Signed-off-by: Hridya Valsaraju hridya@google.com

---

Reviewed-by: Greg Kroah-Hartman gregkh@linuxfoundation.org