Re: [PATCH 3/9] xfs: convert buffer cache to use high order folios

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Subject: Re: [PATCH 3/9] xfs: convert buffer cache to use high order folios
From: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Mon, 18 Mar 2024 23:55:59 -0700
Cc: linux-xfs@xxxxxxxxxxxxxxx
In-reply-to: <20240318224715.3367463-4-david@fromorbit.com>
References: <20240318224715.3367463-1-david@fromorbit.com> <20240318224715.3367463-4-david@fromorbit.com>

This looks mostly good to me.  One question:
xfs_buf_free passes the folio count to mm_account_reclaimed_pages.
The name and implementation suggest it actually wants a count of
page size units, though.

References:
- [PATCH v2 0/9] xfs: use large folios for buffers
  - From: Dave Chinner
- [PATCH 3/9] xfs: convert buffer cache to use high order folios
  - From: Dave Chinner

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