From: Peter Maydell Date: Mon, 4 Jun 2018 17:34:04 +0000 (+0100) Subject: Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=0d514fa23402ab7b4f1c965e0631d953bbe4d3b7;p=qemu.git Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging Pull request * Copy offloading for qemu-img convert (iSCSI, raw, and qcow2) If the underlying storage supports copy offloading, qemu-img convert will use it instead of performing reads and writes. This avoids data transfers and thus frees up storage bandwidth for other purposes. SCSI EXTENDED COPY and Linux copy_file_range(2) are used to implement this optimization. * Drop spurious "WARNING: I\/O thread spun for 1000 iterations" warning # gpg: Signature made Mon 04 Jun 2018 12:20:08 BST # gpg: using RSA key 9CA4ABB381AB73C8 # gpg: Good signature from "Stefan Hajnoczi " # gpg: aka "Stefan Hajnoczi " # Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35 775A 9CA4 ABB3 81AB 73C8 * remotes/stefanha/tags/block-pull-request: main-loop: drop spin_counter qemu-img: Convert with copy offloading block-backend: Add blk_co_copy_range iscsi: Implement copy offloading iscsi: Create and use iscsi_co_wait_for_task iscsi: Query and save device designator when opening file-posix: Implement bdrv_co_copy_range qcow2: Implement copy offloading raw: Implement copy offloading raw: Check byte range uniformly block: Introduce API for copy offloading Signed-off-by: Peter Maydell --- 0d514fa23402ab7b4f1c965e0631d953bbe4d3b7