Let debugfs do sparse copy when src is a sparse file, just like
"cp --sparse=auto"
This patch has been reviewed by the linux-ext4 mailing list, but isn't
merged atm.
[YOCTO #3848]
(From OE-Core rev: 723adaf8fbba61b7f1adc8e4a13ddf1cfb5c0bcf)
Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
