linux-kernel - Re: [PATCHv2 2/2] zsmalloc: simplify read begin/end logic

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Message-ID: <vean7s7lfhcdnbs72efar2lt4isklhz4kt337kdbx7k2r4qbzn@rf7acedppq3v>
Date: Thu, 8 Jan 2026 10:14:24 +0900
From: Sergey Senozhatsky <senozhatsky@...omium.org>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: Sergey Senozhatsky <senozhatsky@...omium.org>, 
	Yosry Ahmed <yosry.ahmed@...ux.dev>, Nhat Pham <nphamcs@...il.com>, Minchan Kim <minchan@...nel.org>, 
	Johannes Weiner <hannes@...xchg.org>, Brian Geffon <bgeffon@...gle.com>, linux-kernel@...r.kernel.org, 
	linux-mm@...ck.org
Subject: Re: [PATCHv2 2/2] zsmalloc: simplify read begin/end logic

On (26/01/07 10:17), Andrew Morton wrote:
> > From: Yosry Ahmed <yosry.ahmed@...ux.dev>
> > 
> > When we switched from using class->size (for spans detection)
> > to actual compressed object size, we had to compensate for
> > the fact that class->size implicitly took inlined handle
> > into consideration.  In fact, instead of adjusting the size
> > of compressed object (adding handle offset for non-huge size
> > classes), we can move some lines around and simplify the
> > code: there are already paths in read_begin/end that compensate
> > for inlined object handle offset.
> 
> Updated, thanks.
> 
> > Signed-off-by: Yosry Ahmed <yosry.ahmed@...ux.dev>
> > ---
> 
> This patch should have had your Signed-off-by: also, as you were on the
> delivery path.  I have made that change to the mm.gt copy.

Thanks!