linux-kernel - Re: [PATCH rdma-next] RDMA/core: release devices_rwsem when calling device

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Message-ID: <20260119195329.GK961572@ziepe.ca>
Date: Mon, 19 Jan 2026 15:53:29 -0400
From: Jason Gunthorpe <jgg@...pe.ca>
To: Sharath Srinivasan <sharath.srinivasan@...cle.com>
Cc: Leon Romanovsky <leon@...nel.org>, Parav Pandit <parav@...dia.com>,
	linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH rdma-next] RDMA/core: release devices_rwsem when calling
 device_del

On Mon, Jan 19, 2026 at 11:43:52AM -0800, Sharath Srinivasan wrote:
> The sync strategy in remove_all_compat_devs() can improved
> by adopting that of rdma_dev_exit_net() which releases devices_rwsem
> before calling remove_one_compat_dev()/device_del().
> 
> Also fixes a comment typo in rdma_dev_exit_net().

You cannot change this locking without writing a huge commit message
explaining in detail the reason why any change like this is safe..

Jason