Reviewed-by: Andrey Zhadchenko <andrey.zhadche...@virtuozzo.com>
On 3/5/25 12:45, Pavel Tikhomirov wrote:
That can be usefull for restarting qemu process while allowing backward merging to run asyncronously in kernel. v2: rebase on top of vz9.80.19, make completion event consistent, fix deadlock when cancel after start and before work run v3: weaken locking in progress printing a bit to decrease possible lock contention v5: add "start" stage, remove excess enum init, backward merge error to qcow2_get_errors, note about signals handling removal, merge eventfd and start, release eventfd after work finishes. Note: I didn't yet reworked bash test and ploop part. https://virtuozzo.atlassian.net/browse/VSTOR-100466 Signed-off-by: Pavel Tikhomirov <ptikhomi...@virtuozzo.com> Pavel Tikhomirov (4): dm-qcow2: fix warning about wrong printk format for size_t dm-qcow2: cleanup error handling in qcow2_merge_backward dm-qcow2: make merge_backward command asyncronous dm-qcow2: add merge_backward progress command drivers/md/dm-qcow2-cmd.c | 323 ++++++++++++++++++++++++++++++++--- drivers/md/dm-qcow2-map.c | 4 +- drivers/md/dm-qcow2-target.c | 6 + drivers/md/dm-qcow2.h | 36 ++++ 4 files changed, 341 insertions(+), 28 deletions(-)
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