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Date:   Mon, 16 May 2022 06:43:43 -0700
From:   Christoph Hellwig <hch@infradead.org>
To:     "Darrick J. Wong" <djwong@kernel.org>
Cc:     Dave Chinner <david@fromorbit.com>,
        Matthew Wilcox <willy@infradead.org>,
        linux-fsdevel <linux-fsdevel@vger.kernel.org>,
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        Christoph Hellwig <hch@infradead.org>
Subject: Re: [PATCH] iomap: don't invalidate folios after writeback errors
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The changes looks good to me:

Reviewed-by: Christoph Hellwig <hch@lst.de>

I did a little digging and the invalidatepage call first appeared
in

commit 90ce6b6a90f62578a141359ffe9261e65f2c5265
Author: Steve Lord <lord@sgi.com>
Date:   Mon Sep 2 12:36:59 2002 +0000

    move page_buf_io.c to xfs_aops.c

The old page_buf_io.c file seems to not have made it through to
git, so this seems rather prehistoric.