v4: Don't lock RO image. [Rich] v3: Highlight is handling of image locks during close(3) and bdrv_reopen(). A number of new patches are added consequently.
Fam Zheng (27): block: Add BDRV_O_NO_LOCK qapi: Add lock-image in blockdev-add options blockdev: Add and parse "lock-image" option for block devices block: Introduce image file locking block: Add bdrv_image_locked block: Make bdrv_reopen_{commit, abort} private functions block: Handle image locking during reopen osdep: Add qemu_lock_fd and qemu_unlock_fd osdep: Introduce qemu_dup raw-posix: Use qemu_dup raw-posix: Implement .bdrv_lockf gluster: Implement .bdrv_lockf qemu-io: Add "-L" option for BDRV_O_NO_LOCK qemu-img: Add "-L" option to sub commands qemu-img: Update documentation of "-L" option qemu-nbd: Add "--no-lock/-L" option block: Don't lock drive-backup target image in none mode mirror: Disable image locking on target backing chain qemu-iotests: 140: Disable image lock for qemu-io access qemu-iotests: 046: Move version detection out from verify_io qemu-iotests: Wait for QEMU processes before checking image in 091 qemu-iotests: 030: Disable image lock when checking test image iotests: 087: Disable image lock in cases where file is shared iotests: Disable image locking in 085 tests: Use null-co:// instead of /dev/null block: Turn on image locking by default qemu-iotests: Add test case 153 for image locking block.c | 76 +++++++++++++- block/gluster.c | 31 ++++++ block/raw-posix.c | 32 ++++-- blockdev.c | 23 +++++ include/block/block.h | 6 +- include/block/block_int.h | 12 +++ include/qemu/osdep.h | 3 + qapi/block-core.json | 6 +- qemu-img-cmds.hx | 44 ++++----- qemu-img.c | 90 +++++++++++++---- qemu-img.texi | 3 + qemu-io.c | 24 ++++- qemu-nbd.c | 7 +- qemu-nbd.texi | 2 + tests/drive_del-test.c | 2 +- tests/nvme-test.c | 2 +- tests/qemu-iotests/030 | 2 +- tests/qemu-iotests/046 | 22 +++-- tests/qemu-iotests/085 | 3 +- tests/qemu-iotests/087 | 6 ++ tests/qemu-iotests/091 | 3 + tests/qemu-iotests/091.out | 1 + tests/qemu-iotests/140 | 2 +- tests/qemu-iotests/153 | 191 +++++++++++++++++++++++++++++++++++ tests/qemu-iotests/153.out | 241 +++++++++++++++++++++++++++++++++++++++++++++ tests/qemu-iotests/group | 1 + tests/usb-hcd-uhci-test.c | 2 +- tests/usb-hcd-xhci-test.c | 2 +- tests/virtio-blk-test.c | 2 +- tests/virtio-scsi-test.c | 4 +- util/osdep.c | 215 +++++++++++++++++++++++++++++++++++++--- 31 files changed, 968 insertions(+), 92 deletions(-) create mode 100755 tests/qemu-iotests/153 create mode 100644 tests/qemu-iotests/153.out -- 2.8.2