From: David Howells <dhowells@redhat.com>
To: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Cc: dhowells@redhat.com, linux-fsdevel@vger.kernel.org,
intel-gfx@lists.freedesktop.org, linux-mm@kvack.org,
dri-devel@lists.freedesktop.org, stable@vger.kernel.org,
v9fs@lists.linux.dev
Subject: Re: [PATCH v2 1/9] 9p: Add a migrate_folio method
Date: Wed, 02 Apr 2025 18:10:39 +0100 [thread overview]
Message-ID: <803465.1743613839@warthog.procyon.org.uk> (raw)
In-Reply-To: <20250402150005.2309458-2-willy@infradead.org>
Matthew Wilcox (Oracle) <willy@infradead.org> wrote:
> The migration code used to be able to migrate dirty 9p folios by writing
> them back using writepage. When the writepage method was removed,
> we neglected to add a migrate_folio method, which means that dirty 9p
> folios have been unmovable ever since. This reduced our success at
> defragmenting memory on machines which use 9p heavily.
>
> Fixes: 80105ed2fd27 (9p: Use netfslib read/write_iter)
> Cc: stable@vger.kernel.org
> Cc: David Howells <dhowells@redhat.com>
> Cc: v9fs@lists.linux.dev
> Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: David Howells <dhowells@redhat.com>
next prev parent reply other threads:[~2025-04-02 17:10 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20250402150005.2309458-1-willy@infradead.org>
2025-04-02 14:59 ` [PATCH v2 1/9] 9p: Add a migrate_folio method Matthew Wilcox (Oracle)
2025-04-02 17:10 ` David Howells [this message]
2025-04-03 3:46 ` Dominique Martinet
2025-04-03 3:53 ` Matthew Wilcox
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