linux-kernel - RE: [f2fs-dev] [PATCH 1/2] f2fs: check the largest extent at look-up time

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Date:	Thu, 2 Jul 2015 20:38:11 +0800
From:	Chao Yu <yuchaochina@...mail.com>
To:	"'Jaegeuk Kim'" <jaegeuk@...nel.org>
CC:	<linux-kernel@...r.kernel.org>, <linux-fsdevel@...r.kernel.org>,
	<linux-f2fs-devel@...ts.sourceforge.net>
Subject: RE: [f2fs-dev] [PATCH 1/2] f2fs: check the largest extent at look-up	time

> -----Original Message-----
> From: Jaegeuk Kim [mailto:jaegeuk@...nel.org]
> Sent: Wednesday, July 01, 2015 9:26 AM
> To: linux-kernel@...r.kernel.org; linux-fsdevel@...r.kernel.org;
> linux-f2fs-devel@...ts.sourceforge.net; linux-kernel@...r.kernel.org;
> linux-fsdevel@...r.kernel.org; linux-f2fs-devel@...ts.sourceforge.net
> Cc: Jaegeuk Kim; Jaegeuk Kim
> Subject: [f2fs-dev] [PATCH 1/2] f2fs: check the largest extent at look-up time
> 
> Because of the extent shrinker or other -ENOMEM scenarios, it cannot guarantee
> that the largest extent would be cached in the tree all the time.
> 
> Instead of relying on extent_tree, we can simply check the cached one in extent
> tree accordingly.
> 
> Signed-off-by: Jaegeuk Kim <jaegeuk@...nel.org>

Reviewed-by: Chao Yu <chao2.yu@...sung.com>
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