From: NeilBrown <neilb@suse.de>
Date: Mon, 27 Mar 2006 09:18:12 +0000 (-0800)
Subject: [PATCH] md: Only checkpoint expansion progress occasionally
X-Git-Tag: v2.6.17-rc1~287
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b578d55fdd80140f657130abd85aebeb345755fb;p=pandora-kernel.git

[PATCH] md: Only checkpoint expansion progress occasionally

Instead of checkpointing at each stripe, only checkpoint when a new write
would overwrite uncheckpointed data.  Block any write to the uncheckpointed
area.  Arbitrarily checkpoint at least every 3Meg.

Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

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