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Date:   Tue, 14 Mar 2023 18:46:19 -0400
From:   "Theodore Ts'o" <tytso@mit.edu>
To:     "Matthew Wilcox (Oracle)" <willy@infradead.org>
Cc:     Andreas Dilger <adilger.kernel@dilger.ca>,
        linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH 19/31] ext4: Convert ext4_journalled_zero_new_buffers()
 to use a folio
Message-ID: <20230314224619.GF860405@mit.edu>
References: <20230126202415.1682629-1-willy@infradead.org>
 <20230126202415.1682629-20-willy@infradead.org>
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On Thu, Jan 26, 2023 at 08:24:03PM +0000, Matthew Wilcox (Oracle) wrote:
> Remove a call to compound_head().

Same question as with other commits, plus one more; why is it notable
that calls to compound_head() are being reduced.  I've looked at the
implementation, and it doesn't look all _that_ heavyweight....