Re: [PATCH v2] fs: clean up usage of noop_dirty_folio

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To: Xueshi Hu <xueshi.hu@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
Subject: Re: [PATCH v2] fs: clean up usage of noop_dirty_folio
From: Matthew Wilcox <willy@xxxxxxxxxxxxx>
Date: Mon, 28 Aug 2023 13:18:00 +0100
Cc: hch@xxxxxxxxxxxxx, dan.j.williams@xxxxxxxxx, vishal.l.verma@xxxxxxxxx, dave.jiang@xxxxxxxxx, jayalk@xxxxxxxxxxxx, daniel@xxxxxxxx, deller@xxxxxx, bcrl@xxxxxxxxx, viro@xxxxxxxxxxxxxxxxxx, brauner@xxxxxxxxxx, jack@xxxxxxxx, tytso@xxxxxxx, adilger.kernel@xxxxxxxxx, miklos@xxxxxxxxxx, mike.kravetz@xxxxxxxxxx, muchun.song@xxxxxxxxx, djwong@xxxxxxxxxx, akpm@xxxxxxxxxxxxxxxxxxxx, hughd@xxxxxxxxxx, nvdimm@xxxxxxxxxxxxxxx, linux-cxl@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-fbdev@xxxxxxxxxxxxxxx, dri-devel@xxxxxxxxxxxxxxxxxxxxx, linux-aio@xxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx, linux-ext4@xxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx, linux-xfs@xxxxxxxxxxxxxxx
In-reply-to: <20230828075449.262510-1-xueshi.hu@smartx.com>

On Mon, Aug 28, 2023 at 03:54:49PM +0800, Xueshi Hu wrote:
> In folio_mark_dirty(), it can automatically fallback to
> noop_dirty_folio() if a_ops->dirty_folio is not registered.
> 
> As anon_aops, dev_dax_aops and fb_deferred_io_aops becames empty, remove
> them too.
> 
> Signed-off-by: Xueshi Hu <xueshi.hu@xxxxxxxxxx>

Reviewed-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>

References:
- [PATCH v2] fs: clean up usage of noop_dirty_folio
  - From: Xueshi Hu

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