From: Liu Bo <bo.li.liu@oracle.com>
To: Goldwyn Rodrigues <rgoldwyn@suse.de>
Cc: linux-btrfs@vger.kernel.org
Subject: Re: What is the purpose of EXTENT_PAGE_MAPPED
Date: Thu, 26 Oct 2017 21:17:36 -0700 [thread overview]
Message-ID: <20171027041736.GA18058@lim.localdomain> (raw)
In-Reply-To: <f8f92f68-7ea9-e08e-bb4c-602616d46813@suse.de>
On Tue, Oct 24, 2017 at 05:47:11AM -0500, Goldwyn Rodrigues wrote:
>
> EXTENT_PAGE_MAPPED gets set in set_page_extent_mapped(), but I don't see
> it being cross checked anytime. What is the purpose of setting it?
Please check commit d1310b2e0cd98eb1348553e69b73827b436dca7b, it was
used to differentiate page for metadata and for data, but I think
currently it's just a piece of legacy code.
-liubo
next prev parent reply other threads:[~2017-10-27 4:21 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-24 10:47 What is the purpose of EXTENT_PAGE_MAPPED Goldwyn Rodrigues
2017-10-27 4:17 ` Liu Bo [this message]
2017-10-30 13:21 ` Nikolay Borisov
2017-10-30 13:55 ` David Sterba
2017-10-30 14:01 ` Nikolay Borisov
2017-10-30 14:04 ` Goldwyn Rodrigues
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