linux-kernel - Re: [PATCH net-next v6] bonding: rate-limit bonding driver inspect messages

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Date: Wed, 21 Feb 2024 20:12:07 +0800
From: Hangbin Liu <liuhangbin@...il.com>
To: Praveen Kumar Kannoju <praveen.kannoju@...cle.com>
Cc: j.vosburgh@...il.com, andy@...yhouse.net, davem@...emloft.net,
	edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	rajesh.sivaramasubramaniom@...cle.com, rama.nichanamatlu@...cle.com,
	manjunath.b.patil@...cle.com
Subject: Re: [PATCH net-next v6] bonding: rate-limit bonding driver inspect
 messages

On Wed, Feb 21, 2024 at 01:57:52PM +0530, Praveen Kumar Kannoju wrote:
> Through the routine bond_mii_monitor(), bonding driver inspects and commits
> the slave state changes. During the times when slave state change and
> failure in aqcuiring rtnl lock happen at the same time, the routine
> bond_mii_monitor() reschedules itself to come around after 1 msec to commit
> the new state.
> 
> During this, it executes the routine bond_miimon_inspect() to re-inspect
> the state chane and prints the corresponding slave state on to the console.
> Hence we do see a message at every 1 msec till the rtnl lock is acquired
> and state chage is committed.
> 
> This patch doesn't change how bond functions. It only simply limits this
> kind of log flood.
> 
> Signed-off-by: Praveen Kumar Kannoju <praveen.kannoju@...cle.com>
> ---
> v6: 
>   - Minor space additions addressed. 
> v5: https://lore.kernel.org/all/20240221050809.4372-1-praveen.kannoju@oracle.com/
>   - Redundant indentation addressed.
> v4: https://lore.kernel.org/all/20240220050437.5623-1-praveen.kannoju@oracle.com/
>   - Rectification in the patch subject and versioning details.
> v3: https://lore.kernel.org/lkml/20240219133721.4567-1-praveen.kannoju@oracle.com/
>   - Commit message is modified to provide summary of the issue, because of
>     which rate-limiting the bonding driver messages is needed.
> v2: https://lore.kernel.org/lkml/20240215172554.4211-1-praveen.kannoju@oracle.com/
>   - Use exising net_ratelimit() instead of introducing new rate-limit
>     parameter.
> v1: https://lore.kernel.org/lkml/20240214044245.33170-1-praveen.kannoju@oracle.com/
> ---

Thanks for your patient update.

Reviewed-by: Hangbin Liu <liuhangbin@...il.com>