Re: [PATCH 1/3] filemap: add a per-mapping stable writes flag

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To: "Darrick J. Wong" <djwong@xxxxxxxxxx>
Subject: Re: [PATCH 1/3] filemap: add a per-mapping stable writes flag
From: Christoph Hellwig <hch@xxxxxx>
Date: Tue, 24 Oct 2023 18:14:18 +0200
Cc: Christoph Hellwig <hch@xxxxxx>, Jens Axboe <axboe@xxxxxxxxx>, Matthew Wilcox <willy@xxxxxxxxxxxxx>, Ilya Dryomov <idryomov@xxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, linux-block@xxxxxxxxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx, linux-xfs@xxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx
In-reply-to: <20231024150053.GY3195650@frogsfrogsfrogs>
References: <20231024064416.897956-1-hch@lst.de> <20231024064416.897956-2-hch@lst.de> <20231024150053.GY3195650@frogsfrogsfrogs>
User-agent: Mutt/1.5.17 (2007-11-01)

On Tue, Oct 24, 2023 at 08:00:53AM -0700, Darrick J. Wong wrote:
> For a hot second I wondered if we could get rid of SB_I_STABLE_WRITES
> too, but then had an AHA moment when I saw that NFS also sets it.

It's not just NFS, but still the general way of propagating the flag.
I don't really want to add bdev-specific code to new_inode.

References:
- add and use a per-mapping stable writes flag
  - From: Christoph Hellwig
- [PATCH 1/3] filemap: add a per-mapping stable writes flag
  - From: Christoph Hellwig
- Re: [PATCH 1/3] filemap: add a per-mapping stable writes flag
  - From: Darrick J. Wong

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