On Tue, Jun 3, 2025 at 2:38 PM wangtao wrote:
>
>
>
> > -Original Message-
> > From: Amir Goldstein
> > Sent: Tuesday, June 3, 2025 6:57 PM
> > To: wangtao
> > Cc: sumit.sem...@linaro.org; christian.koe...@amd.com;
> > kr
irect I/O zero-copy implementation
>
> Suggested by: Christian König
> Suggested by: Amir Goldstein
> Signed-off-by: wangtao
> ---
> fs/read_write.c| 64 +-
> include/linux/fs.h | 2 ++
> 2 files changed, 54 insertions(+), 12 dele
On Fri, May 30, 2025 at 12:40 PM wangtao wrote:
>
> Memory-backed files can optimize copy performance via
> copy_file_range callbacks. Compared to mmap&read: reduces
> GUP (get_user_pages) overhead; vs sendfile/splice: eliminates
> one memory copy; supports dmabuf zero-copy implementation.
>
> Sig
