From: Matthew Wilcox <willy@infradead.org>
To: Gao Xiang <xiang@kernel.org>
Cc: linux-erofs@lists.ozlabs.org, LKML <linux-kernel@vger.kernel.org>
Subject: Re: [RFC PATCH 2/2] erofs: directly traverse pages in z_erofs_readahead()
Date: Mon, 5 Jul 2021 21:15:26 +0100 [thread overview]
Message-ID: <YONoXm1ksYgWWi/r@casper.infradead.org> (raw)
In-Reply-To: <20210705183253.14833-2-xiang@kernel.org>
On Tue, Jul 06, 2021 at 02:32:53AM +0800, Gao Xiang wrote:
> In that way, pages can be accessed directly with xarray.
I didn't mean "open code readahead_page()". I meant "Wouldn't it be
great if z_erofs_do_read_page() used readahead_expand() in order to
allocate the extra pages in the extents that cover the start and end of
the requested chunk". That way the pages would already be in the page
cache for subsequent reads.
next prev parent reply other threads:[~2021-07-05 20:15 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-05 18:32 [PATCH 1/2] erofs: better comment z_erofs_readahead() Gao Xiang
2021-07-05 18:32 ` Gao Xiang
2021-07-05 18:32 ` [RFC PATCH 2/2] erofs: directly traverse pages in z_erofs_readahead() Gao Xiang
2021-07-05 18:32 ` Gao Xiang
2021-07-05 20:15 ` Matthew Wilcox [this message]
2021-07-05 22:48 ` Gao Xiang
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