linux-kernel - Re: [PATCH mm-unstable 3/5] mm: zpool: Remove object mapping APIs

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Message-ID: <20250306141544.GA290530@cmpxchg.org>
Date: Thu, 6 Mar 2025 09:15:44 -0500
From: Johannes Weiner <hannes@...xchg.org>
To: Herbert Xu <herbert@...dor.apana.org.au>
Cc: Yosry Ahmed <yosry.ahmed@...ux.dev>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Nhat Pham <nphamcs@...il.com>,
	Chengming Zhou <chengming.zhou@...ux.dev>,
	Minchan Kim <minchan@...nel.org>,
	Sergey Senozhatsky <senozhatsky@...omium.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Peter Zijlstra <peterz@...radead.org>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH mm-unstable 3/5] mm: zpool: Remove object mapping APIs

On Thu, Mar 06, 2025 at 09:48:58AM +0800, Herbert Xu wrote:
> On Wed, Mar 05, 2025 at 06:11:31AM +0000, Yosry Ahmed wrote:
> > zpool_map_handle(), zpool_unmap_handle(), and zpool_can_sleep_mapped()
> > are no longer used. Remove them with the underlying driver callbacks.
> > 
> > Signed-off-by: Yosry Ahmed <yosry.ahmed@...ux.dev>
> > ---
> >  include/linux/zpool.h | 30 ---------------------
> >  mm/zpool.c            | 61 -------------------------------------------
> >  mm/zsmalloc.c         | 27 -------------------
> >  3 files changed, 118 deletions(-)
> 
> This patch breaks zbud and z3fold because they haven't been converted
> to the new interface.

They're both scheduled for removal and already gone in the mm tree.