Re: [Devel] [PATCH VZ9 3/3] drivers/md/ploop: decrease inflight number after pio endio

On 7/16/25 04:51, Pavel Tikhomirov wrote: On 7/15/25 22:20, Andrey Zhadchenko wrote: We do not increase inflight number when we chain pios, so we should decrease inflight only after all chained pios are also completed, e.g. pio->remaining is zero, and file is flushed if needed I see that p

Re: [Devel] [PATCH VZ9 v2 0/3] improve pio submission suspension

Reviewed-by: Pavel Tikhomirov On 7/16/25 17:37, Andrey Zhadchenko wrote: Recently we encountered EBUSY errors while trying to resize ploop devices under load. This mostly happens because we are not waiting in-progess IO correctly: - initial pio is removed from inflight even if its split pios

[Devel] [PATCH VZ9 v2 2/3] drivers/md/ploop: add inflight metadata writeback counter

and use it during ploop_suspend_submitting_pios() to wait for all writeback to flush https://virtuozzo.atlassian.net/browse/VSTOR-108540 Signed-off-by: Andrey Zhadchenko --- v2: - removed excessive ploop_inflight_bios_ref_switch() drivers/md/dm-ploop-cmd.c| 6 ++ drivers/md/dm-ploop-ma

[Devel] [PATCH VZ9 v2 3/3] drivers/md/ploop: decrease inflight number after pio endio

We do not increase inflight number when we chain pios, so we should decrease inflight only after all chained pios are also completed, e.g. pio->remaining is zero, and file is flushed if needed https://virtuozzo.atlassian.net/browse/VSTOR-108540 Signed-off-by: Andrey Zhadchenko --- drivers/md/dm-

[Devel] [PATCH VZ9 v2 0/3] improve pio submission suspension

Recently we encountered EBUSY errors while trying to resize ploop devices under load. This mostly happens because we are not waiting in-progess IO correctly: - initial pio is removed from inflight even if its split pios are still running - there are no wait for metadata writeback This patchset f

[Devel] [PATCH VZ9 v2 1/3] drivers/md/ploop: drop excessive wb delay disable during resize

as ploop_suspend_submitting_pios() already contains ploop_disable_writeback_delay() and is called before ploop_process_resize_cmd() https://virtuozzo.atlassian.net/browse/VSTOR-108540 Signed-off-by: Andrey Zhadchenko --- drivers/md/dm-ploop-cmd.c | 3 --- 1 file changed, 3 deletions(-) diff --g

Re: [Devel] [PATCH VZ9 2/3] drivers/md/ploop: add inflight metadata writeback counter

On 7/16/25 04:36, Pavel Tikhomirov wrote: On 7/15/25 22:20, Andrey Zhadchenko wrote: and use it during ploop_suspend_submitting_pios() to wait for all writeback to flush https://virtuozzo.atlassian.net/browse/VSTOR-108540 Signed-off-by: Andrey Zhadchenko ---   drivers/md/dm-ploop-cmd.c   

[Devel] [PATCH RHEL9 COMMIT] dm-ploop: decrease inflight number after pio endio

The commit is pushed to "branch-rh9-5.14.0-427.55.1.vz9.82.x-ovz" and will appear at g...@bitbucket.org:openvz/vzkernel.git after rh9-5.14.0-427.55.1.vz9.82.8 --> commit 3f9825c0e19b04584cbd9b0f6fa31d82e30ddefc Author: Andrey Zhadchenko Date: Wed Jul 16 12:37:53 2025 +0300 dm-ploop: de

[Devel] [PATCH RHEL9 COMMIT] dm-ploop: add inflight metadata writeback counter

The commit is pushed to "branch-rh9-5.14.0-427.55.1.vz9.82.x-ovz" and will appear at g...@bitbucket.org:openvz/vzkernel.git after rh9-5.14.0-427.55.1.vz9.82.8 --> commit 2ca8fae2ae23d814b347eef8b43630e4e4e11aa3 Author: Andrey Zhadchenko Date: Wed Jul 16 12:37:52 2025 +0300 dm-ploop: ad

[Devel] [PATCH RHEL9 COMMIT] dm-ploop: drop excessive wb delay disable during resize

The commit is pushed to "branch-rh9-5.14.0-427.55.1.vz9.82.x-ovz" and will appear at g...@bitbucket.org:openvz/vzkernel.git after rh9-5.14.0-427.55.1.vz9.82.8 --> commit 89f505f973a37e34cbb4f1f4884559adbb4657e5 Author: Andrey Zhadchenko Date: Wed Jul 16 12:37:51 2025 +0300 dm-ploop: dr