linux-kernel - Re: [PATCH v3 00/13] fiemap extension for more physical information

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Date: Wed, 3 Apr 2024 11:11:10 -0400
From: Sweet Tea Dorminy <sweettea-kernel@...miny.me>
To: Gao Xiang <hsiangkao@...ux.alibaba.com>, Jonathan Corbet
 <corbet@....net>, Kent Overstreet <kent.overstreet@...ux.dev>,
 Brian Foster <bfoster@...hat.com>, Chris Mason <clm@...com>,
 Josef Bacik <josef@...icpanda.com>, David Sterba <dsterba@...e.com>,
 Jaegeuk Kim <jaegeuk@...nel.org>, Chao Yu <chao@...nel.org>,
 Alexander Viro <viro@...iv.linux.org.uk>,
 Christian Brauner <brauner@...nel.org>, Jan Kara <jack@...e.cz>,
 Mickaël Salaün <mic@...ikod.net>,
 linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-bcachefs@...r.kernel.org, linux-btrfs@...r.kernel.org,
 linux-f2fs-devel@...ts.sourceforge.net, linux-fsdevel@...r.kernel.org,
 kernel-team@...a.com
Subject: Re: [PATCH v3 00/13] fiemap extension for more physical information


> 
> I'm not sure why here iomap was excluded technically or I'm missing some
> previous comments?
> 
> 
> Could you also make iomap support new FIEMAP physical extent information?
> since compressed EROFS uses iomap FIEMAP interface to report compressed
> extents ("z_erofs_iomap_report_ops") but there is no way to return
> correct compressed lengths, that is unexpected.
> 

I'll add iomap support in v4, I'd skipped it since I was worried it'd be 
an expansive additional part not necessary initially. Thank you for 
noting it!

Sweet Tea