From: Jakub Kicinski <kuba@kernel.org>
To: Eli Cohen <elic@nvidia.com>
Cc: Saeed Mahameed <saeed@kernel.org>,
"David S. Miller" <davem@davemloft.net>,
Paolo Abeni <pabeni@redhat.com>,
Eric Dumazet <edumazet@google.com>,
Saeed Mahameed <saeedm@nvidia.com>,
netdev@vger.kernel.org, Tariq Toukan <tariqt@nvidia.com>
Subject: Re: [net-next 03/14] lib: cpu_rmap: Add irq_cpu_rmap_remove to complement irq_cpu_rmap_add
Date: Wed, 22 Mar 2023 11:45:56 -0700 [thread overview]
Message-ID: <20230322114556.7cc6536c@kernel.org> (raw)
In-Reply-To: <87aa5292-d59b-9789-1326-91805da34831@nvidia.com>
On Wed, 22 Mar 2023 13:24:33 +0200 Eli Cohen wrote:
> On 22/03/2023 5:46, Jakub Kicinski wrote:
> > On Mon, 20 Mar 2023 10:51:33 -0700 Saeed Mahameed wrote:
> >> From: Eli Cohen <elic@nvidia.com>
> >>
> >> Add a function to complement irq_cpu_rmap_add(). It removes the irq from
> >> the reverse mapping by setting the notifier to NULL.
> > Poor commit message. You should mention that glue is released and
> > cleared via the kref.
>
> Why is it necessary to mention glue which is internal to the
> implementation and is not part of the API?
So that the reviewer of the code knows and knows that you know.
> > BTW who can hold the kref? What are the chances that user will call:
>
> The glue kref is used to ensure the glue is not remove when the callback
> is called in the workqueue context.
>
> Re chances, not really high since a driver usually deals with rmap at
> load and unload time.
Mention it in the commit message please, to make sure Thomas is aware
when he acks.
next prev parent reply other threads:[~2023-03-22 18:46 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-20 17:51 [pull request][net-next 00/14] mlx5 updates 2023-03-20 Saeed Mahameed
2023-03-20 17:51 ` [net-next 01/14] lib: cpu_rmap: Avoid use after free on rmap->obj array entries Saeed Mahameed
2023-03-22 3:38 ` Jakub Kicinski
2023-03-22 9:43 ` Eli Cohen
2023-03-20 17:51 ` [net-next 02/14] lib: cpu_rmap: Use allocator for rmap entries Saeed Mahameed
2023-03-22 3:40 ` Jakub Kicinski
2023-03-22 3:50 ` Jakub Kicinski
2023-03-22 10:01 ` Eli Cohen
2023-03-22 10:01 ` Eli Cohen
2023-03-20 17:51 ` [net-next 03/14] lib: cpu_rmap: Add irq_cpu_rmap_remove to complement irq_cpu_rmap_add Saeed Mahameed
2023-03-22 3:46 ` Jakub Kicinski
2023-03-22 11:24 ` Eli Cohen
2023-03-22 18:45 ` Jakub Kicinski [this message]
2023-03-20 17:51 ` [net-next 04/14] net/mlx5e: Coding style fix, add empty line Saeed Mahameed
2023-03-20 17:51 ` [net-next 05/14] net/mlx5: Fix wrong comment Saeed Mahameed
2023-03-20 17:51 ` [net-next 06/14] net/mlx5: Modify struct mlx5_irq to use struct msi_map Saeed Mahameed
2023-03-20 17:51 ` [net-next 07/14] net/mlx5: Use newer affinity descriptor Saeed Mahameed
2023-03-20 17:51 ` [net-next 08/14] net/mlx5: Improve naming of pci function vectors Saeed Mahameed
2023-03-20 17:51 ` [net-next 09/14] net/mlx5: Refactor completion irq request/release code Saeed Mahameed
2023-03-20 17:51 ` [net-next 10/14] net/mlx5: Use dynamic msix vectors allocation Saeed Mahameed
2023-03-20 17:51 ` [net-next 11/14] net/mlx5: Move devlink registration before mlx5_load Saeed Mahameed
2023-03-20 17:51 ` [net-next 12/14] net/mlx5: Refactor calculation of required completion vectors Saeed Mahameed
2023-03-20 17:51 ` [net-next 13/14] net/mlx5: Use one completion vector if eth is disabled Saeed Mahameed
2023-03-20 17:51 ` [net-next 14/14] net/mlx5: Provide external API for allocating vectors Saeed Mahameed
2023-03-22 3:49 ` [pull request][net-next 00/14] mlx5 updates 2023-03-20 Jakub Kicinski
2023-03-22 20:24 ` Jacob Keller
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