linux-kernel - Re: [PATCH] proc/softirqs: change softirqs info from possile_cpu to online

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Message-ID: <87ed3hnqmq.ffs@tglx>
Date: Tue, 12 Nov 2024 03:16:13 +0100
From: Thomas Gleixner <tglx@...utronix.de>
To: "enlin.mu" <18001123162@....com>, 18001123162@....codeaurora.org,
 enlin.mu@...soc.com, linux-kernel@...r.kernel.org,
 linux-fsdevel@...r.kernel.org, akpm@...ux-foundation.org, hch@....de
Subject: Re: [PATCH] proc/softirqs: change softirqs info from possile_cpu to
 online_cpu

On Sat, Nov 09 2024 at 00:22, enlin mu wrote:

> From: Enlin Mu <enlin.mu@...soc.com>
>
> like /proc/interrupts,/proc/softirqs which shows
> the number of softirq for each online CPU

This changes the output format of a file which is used by various
tools, i.e. this is an ABI change.

Did you validate that none of these tools relies on consecutive CPU
numbers even when CPUs in the middle of the number space are offline?

Thanks,

        tglx