linux-kernel - Re: [PATCH v3 04/23] page-writeback: Convert write_cache_pages() to use filemap_get_folios

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Message-ID: <Y1bxktICFzdSl09W@casper.infradead.org>
Date:   Mon, 24 Oct 2022 21:12:02 +0100
From:   Matthew Wilcox <willy@...radead.org>
To:     "Vishal Moola (Oracle)" <vishal.moola@...il.com>
Cc:     linux-fsdevel@...r.kernel.org, linux-afs@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-btrfs@...r.kernel.org,
        ceph-devel@...r.kernel.org, linux-cifs@...r.kernel.org,
        linux-ext4@...r.kernel.org, linux-f2fs-devel@...ts.sourceforge.net,
        cluster-devel@...hat.com, linux-nilfs@...r.kernel.org,
        linux-mm@...ck.org
Subject: Re: [PATCH v3 04/23] page-writeback: Convert write_cache_pages() to
 use filemap_get_folios_tag()

On Mon, Oct 17, 2022 at 01:24:32PM -0700, Vishal Moola (Oracle) wrote:
> Converted function to use folios throughout. This is in preparation for
> the removal of find_get_pages_range_tag().

And removes eight calls to compound_head(), saving 296 bytes of kernel
text (!)  It also adds support for large folios to this function.

> Signed-off-by: Vishal Moola (Oracle) <vishal.moola@...il.com>

Reviewed-by: Matthew Wilcox (Oracle) <willy@...radead.org>