From: Dan Ehrenberg <dehrenberg@google.com>
Date: Mon, 18 Jul 2011 01:11:30 +0000 (-0400)
Subject: ext4: make the preallocation size be a multiple of stripe size
X-Git-Tag: v3.1-rc1~90^2~34
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d7a1fee135771e6e5185642bdc17df19bbdbcc48;p=pandora-kernel.git

ext4: make the preallocation size be a multiple of stripe size

Previously, if a stripe width was provided, then it would be used
as the preallocation granularity, with no santiy checking and no
way to override this. Now, mb_prealloc_size defaults to the smallest
multiple of stripe size that is greater than or equal to the old
default mb_prealloc_size, and this can be overridden with the sysfs
interface.

Signed-off-by: Dan Ehrenberg <dehrenberg@google.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---

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