From: Matthew Wilcox <willy@infradead.org>
To: Christoph Hellwig <hch@lst.de>
Cc: "Darrick J. Wong" <djwong@kernel.org>,
Andreas Gruenbacher <andreas.gruenbacher@gmail.com>,
LKML <linux-kernel@vger.kernel.org>,
linux-fsdevel@vger.kernel.org, linux-erofs@lists.ozlabs.org
Subject: Re: [PATCH v6] iomap: support tail packing inline read
Date: Thu, 22 Jul 2021 17:57:06 +0100 [thread overview]
Message-ID: <YPmjYieZ57WVsQx9@casper.infradead.org> (raw)
In-Reply-To: <20210722165342.GA11435@lst.de>
On Thu, Jul 22, 2021 at 06:53:42PM +0200, Christoph Hellwig wrote:
> On Thu, Jul 22, 2021 at 09:51:09AM -0700, Darrick J. Wong wrote:
> > The commit message is a little misleading -- this adds support for
> > inline data pages at nonzero (but page-aligned) file offsets, not file
> > offsets into the page itself. I suggest:
>
> It actually adds both. pos is the offset into the file.
If you want to add support for both, then you need to call
iomap_set_range_uptodate() instead of SetPageUptodate(). Otherwise,
you can set the page uptodate before submitting the bio for the first
half of the page.
next prev parent reply other threads:[~2021-07-22 16:58 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-22 3:17 [PATCH v6] iomap: support tail packing inline read Gao Xiang
2021-07-22 5:39 ` Christoph Hellwig
2021-07-22 5:56 ` Gao Xiang
2021-07-22 16:51 ` Darrick J. Wong
2021-07-22 16:53 ` Christoph Hellwig
2021-07-22 16:57 ` Matthew Wilcox [this message]
2021-07-23 1:26 ` Gao Xiang
2021-07-23 6:22 ` Huang Jianan via Linux-erofs
2021-07-23 15:05 ` Matthew Wilcox
2021-07-23 15:23 ` Gao Xiang
2021-07-23 15:56 ` Matthew Wilcox
2021-07-23 16:24 ` Gao Xiang
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