linux-kernel - Re: [RFC 1/2] gfs2: replace sd_aspace with sd

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Message-ID: <Z_eGVWwQ0zCo2aSR@infradead.org>
Date: Thu, 10 Apr 2025 01:50:29 -0700
From: Christoph Hellwig <hch@...radead.org>
To: Andreas Gruenbacher <agruenba@...hat.com>
Cc: cgroups@...r.kernel.org,
	Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>,
	Jan Kara <jack@...e.cz>, Rafael Aquini <aquini@...hat.com>,
	gfs2@...ts.linux.dev, linux-mm@...ck.org,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC 1/2] gfs2: replace sd_aspace with sd_inode

On Mon, Apr 07, 2025 at 08:21:01PM +0200, Andreas Gruenbacher wrote:
> Use a dummy inode as mapping->host of the address spaces for global as
> well as per-inode metadata.  The global metadata address space is now
> accessed as gfs2_aspace(sdp) instead of sdp->sd_aspace.  The per-inode
> metadata address spaces are still accessed as
> gfs2_glock2aspace(GFS2_I(inode)->i_gl).
> 
> Based on a previous version from Bob Peterson from several years ago.

Please explain why you are doing this, not just what.