netdev - Re: [PATCH net-next 0/6] Allow parallel devlink execution

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Message-ID: <20211206180027.3700d357@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com>
Date:   Mon, 6 Dec 2021 18:00:27 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     Leon Romanovsky <leon@...nel.org>
Cc:     "David S . Miller" <davem@...emloft.net>,
        Leon Romanovsky <leonro@...dia.com>,
        Ido Schimmel <idosch@...dia.com>, Jiri Pirko <jiri@...dia.com>,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH net-next 0/6] Allow parallel devlink execution

On Sun,  5 Dec 2021 10:22:00 +0200 Leon Romanovsky wrote:
> This is final piece of devlink locking puzzle, where I remove global
> mutex lock (devlink_mutex), so we can run devlink commands in parallel.
> 
> The series starts with addition of port_list_lock, which is needed to
> prevent locking dependency between netdevsim sysfs and devlink. It
> follows by the patch that adds context aware locking primitives. Such
> primitives allow us to make sure that devlink instance is locked and
> stays locked even during reload operation. The last patches opens
> devlink to parallel commands.

I'm not okay with assuming that all sub-objects are added when devlink
is not registered.