Re: [PATCH 16/31] ext4: Convert ext4_write_begin() to use a folio

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To: "Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx>
Subject: Re: [PATCH 16/31] ext4: Convert ext4_write_begin() to use a folio
From: "Theodore Ts'o" <tytso@xxxxxxx>
Date: Tue, 14 Mar 2023 18:40:22 -0400
Cc: Andreas Dilger <adilger.kernel@xxxxxxxxx>, linux-ext4@xxxxxxxxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx
In-reply-to: <20230126202415.1682629-17-willy@infradead.org>
References: <20230126202415.1682629-1-willy@infradead.org> <20230126202415.1682629-17-willy@infradead.org>

On Thu, Jan 26, 2023 at 08:24:00PM +0000, Matthew Wilcox (Oracle) wrote:
> Remove a lot of calls to compound_head().

I'm still puzzled about how this removes a lot of calls to
compound_head().  I must be missing something...

References:
- [PATCH 00/31] Convert most of ext4 to folios
  - From: Matthew Wilcox (Oracle)
- [PATCH 16/31] ext4: Convert ext4_write_begin() to use a folio
  - From: Matthew Wilcox (Oracle)

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