On Tue 2014-07-15 15:34:47, Mikulas Patocka wrote: > This is Martin Petersen's xcopy patch > (https://git.kernel.org/cgit/linux/kernel/git/mkp/linux.git/commit/?h=xcopy&id=0bdeed274e16b3038a851552188512071974eea8) > with some bug fixes, ported to the current kernel. > > This patch makes it possible to use the SCSI XCOPY command. > > We create a bio that has REQ_COPY flag in bi_rw and a bi_copy structure > that defines the source device. The target device is defined in the > bi_bdev and bi_iter.bi_sector. > > There is a new BLKCOPY ioctl that makes it possible to use XCOPY from > userspace. The ioctl argument is a pointer to an array of four uint64_t > values. But it is there only for block devices, right? Is there plan to enable tools such as /bin/cp to use XCOPY? Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
