From: Daniel Drake <dsd@laptop.org>
Date: Thu, 7 Oct 2010 18:14:02 +0000 (+0100)
Subject: jffs2: Dynamically choose inocache hash size
X-Git-Tag: v2.6.37-rc1~22^2~29
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=65e5a0e18e5fb5bc6cfabd8ef4b9fc1c8569ba62;p=pandora-kernel.git

jffs2: Dynamically choose inocache hash size

When JFFS2 is used for large volumes, the mount times are quite long.
Increasing the hash size provides a significant speed boost on the OLPC
XO-1 laptop.

Add logic that dynamically selects a hash size based on the size of
the medium. A 64mb medium will result in a hash size of 128, and a 512mb
medium will result in a hash size of 1024.

Signed-off-by: Daniel Drake <dsd@laptop.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
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