From: "Fabian Grünbichler" <f.gruenbichler@proxmox.com>
To: Fabian Ebner <f.ebner@proxmox.com>, pve-devel@lists.proxmox.com
Subject: Re: [pve-devel] [PATCH qemu-server 2/4] api: clone: fork before locking
Date: Thu, 03 Feb 2022 13:49:06 +0100 [thread overview]
Message-ID: <1643892517.1cq7x1cfxv.astroid@nora.none> (raw)
In-Reply-To: <3f5de144-086e-570f-da61-e05dd6d2e365@proxmox.com>
On February 3, 2022 10:31 am, Fabian Ebner wrote:
> Am 31.01.22 um 13:34 schrieb Fabian Grünbichler:
>> On January 27, 2022 3:01 pm, Fabian Ebner wrote:
>>> using the familiar early+repeated checks pattern from other API calls.
>>> Only intended functional changes are with regard to locking/forking.
>>
>> two questions:
>> - the FW config cloning happens inside the worker now, while it was
>> previously before forking the worker (LGTM, but might be called out
>> explicitly if intentional ;))
>
> Honestly, I didn't think too much about it, so thanks for pointing that
> out! But thinking about it now, I also don't see an obvious issue with
> it and IMHO it feels more natural to be part of the worker since it
> takes the firewall config lock and the cleanup also happens inside the
> worker.
>
>> - there are some checks at the start of the endpoint (checking
>> storage/target), which are not repeated after the fork+lock - while
>> unlikely, our view of storage.cfg could change in-between (lock guest
>> config -> cfs_update). should those be moved in the check sub (or into
>> the check_storage_access_clone helper)?
>>
>
> Yes, for better consistency that should be done. Either way is fine with
> me. Should I send a v2 or are you going to do a follow-up?
I'll do a follow-up!
>
>> rest of the series LGTM
next prev parent reply other threads:[~2022-02-03 12:49 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-27 14:01 [pve-devel] [PATCH-SERIES qemu-server] clone_disk-related improvments Fabian Ebner
2022-01-27 14:01 ` [pve-devel] [PATCH qemu-server 1/4] drive mirror monitor: warn when suspend/resume/freeze/thaw calls fail Fabian Ebner
2022-01-27 14:01 ` [pve-devel] [PATCH qemu-server 2/4] api: clone: fork before locking Fabian Ebner
2022-01-31 12:34 ` Fabian Grünbichler
2022-02-03 9:31 ` Fabian Ebner
2022-02-03 12:49 ` Fabian Grünbichler [this message]
2022-01-27 14:01 ` [pve-devel] [PATCH qemu-server 3/4] api: move disk: " Fabian Ebner
2022-01-27 14:01 ` [pve-devel] [PATCH qemu-server 4/4] clone disk: don't modify drive parameter Fabian Ebner
2022-02-08 8:36 ` [pve-devel] applied-series: [PATCH-SERIES qemu-server] clone_disk-related improvments Fabian Grünbichler
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