kernel test robot <oliver.sang@xxxxxxxxx> wrote:
> commit:
> 83e79d429d ("shmem: Implement splice-read")
> 05b2c21a37 ("overlayfs: Implement splice-read")
An improvement is certainly feasible, though a 3.7x improvement would be quite
a surprise.
shmem_file_splice_read() and filemap_splice_read() have a shorter call chain
than using ->read_iter() with ITER_PIPE.
overlayfs now delegates the splice directly to the lower filesystem.
David
