v5: - Fixed file-win32 [Patchew] - Fixed zeroing in qcow2 for unaligned requests + tests [Vladimir] - Made raw-format code more consistent [Eric] - Leave output for existing iotests cases unchanged [Vladimir]
v4: - Rewrote the series to move the actual zeroing to the block drivers so that error paths can work correctly and potentially long-running fallback to writing explicit zeroes is avoided. - Fixed output filtering order in the test case [Max] v3: - Don't allow blocking the monitor for a zero write in block_resize (even though we can already blockfor other reasons there). This is mainly responsible for the increased complexity compared to v2. Personally, I think this is not an improvement over v2, but if this is what it takes to fix a corruption issue in 4.2... [Max] - Don't use huge image files in the test case [Vladimir] v2: - Switched order of bs->total_sectors update and zero write [Vladimir] - Fixed coding style [Vladimir] - Changed the commit message to contain what was in the cover letter - Test all preallocation modes - Test allocation status with qemu-io 'map' [Vladimir] Kevin Wolf (9): block: Add flags to BlockDriver.bdrv_co_truncate() block: Add flags to bdrv(_co)_truncate() block-backend: Add flags to blk_truncate() qcow2: Support BDRV_REQ_ZERO_WRITE for truncate raw-format: Support BDRV_REQ_ZERO_WRITE for truncate file-posix: Support BDRV_REQ_ZERO_WRITE for truncate block: truncate: Don't make backing file data visible iotests: Filter testfiles out in filter_img_info() iotests: Test committing to short backing file include/block/block.h | 5 +- include/block/block_int.h | 10 +- include/sysemu/block-backend.h | 2 +- block.c | 3 +- block/block-backend.c | 4 +- block/commit.c | 4 +- block/crypto.c | 7 +- block/file-posix.c | 6 +- block/file-win32.c | 2 +- block/gluster.c | 1 + block/io.c | 32 +++- block/iscsi.c | 2 +- block/mirror.c | 2 +- block/nfs.c | 3 +- block/parallels.c | 6 +- block/qcow.c | 4 +- block/qcow2-refcount.c | 2 +- block/qcow2.c | 51 +++++-- block/qed.c | 3 +- block/raw-format.c | 6 +- block/rbd.c | 1 + block/sheepdog.c | 4 +- block/ssh.c | 2 +- block/vdi.c | 2 +- block/vhdx-log.c | 2 +- block/vhdx.c | 6 +- block/vmdk.c | 8 +- block/vpc.c | 2 +- blockdev.c | 2 +- qemu-img.c | 2 +- qemu-io-cmds.c | 2 +- tests/test-block-iothread.c | 9 +- tests/qemu-iotests/iotests.py | 5 +- tests/qemu-iotests/274 | 157 ++++++++++++++++++++ tests/qemu-iotests/274.out | 260 +++++++++++++++++++++++++++++++++ tests/qemu-iotests/group | 1 + 36 files changed, 558 insertions(+), 62 deletions(-) create mode 100755 tests/qemu-iotests/274 create mode 100644 tests/qemu-iotests/274.out -- 2.25.3
