Discussing copy offloading at LSF is appropriate because it can involve so many layers of the stack: - high level syscall interface - in-kernel high level entry point for nfsd - fs specific implementations (btrfs and ocfs2 cow, nfs) - vfs helper for offloading block copies for ext*,xfs - bio offload requests for cow block devices like bcache/dm-cache - encoding offload bios into scsi reqs - processing virt guest device offload requests with host syscalls Getting the user and in-kernel interfaces right to support all these moving parts has proven tricky. The more input, the better. It's been a while since I sent out a refreshed version of the series. That'll be remedied before LSF rolls around :). - z -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
