linux-kernel - Re: [PATCH v2 0/6] Improve visibility of writeback

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Date: Wed, 27 Mar 2024 10:40:10 -0700
From: Andrew Morton <akpm@...ux-foundation.org>
To: Kemeng Shi <shikemeng@...weicloud.com>
Cc: willy@...radead.org, jack@...e.cz, bfoster@...hat.com, tj@...nel.org,
 dsterba@...e.com, mjguzik@...il.com, dhowells@...hat.com,
 linux-kernel@...r.kernel.org, linux-mm@...ck.org,
 linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH v2 0/6] Improve visibility of writeback

On Wed, 27 Mar 2024 23:57:45 +0800 Kemeng Shi <shikemeng@...weicloud.com> wrote:

> This series tries to improve visilibity of writeback.

Well...  why?  Is anyone usefully using the existing instrumentation? 
What is to be gained by expanding it further?  What is the case for
adding this code?

I don't recall hearing of anyone using the existing debug
instrumentation so perhaps we should remove it!

Also, I hit a build error and a pile of warnings with an arm
allnoconfig build.