From: NeilBrown <neilb@suse.de>
Date: Mon, 10 Jul 2006 11:44:16 +0000 (-0700)
Subject: [PATCH] md: fix resync speed calculation for restarted resyncs
X-Git-Tag: v2.6.18-rc2~222
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ff4e8d9a9f46e3a7f89d14ade52fe5d53a82c022;p=pandora-kernel.git

[PATCH] md: fix resync speed calculation for restarted resyncs

We introduced 'io_sectors' recently so we could count the sectors that causes
io during resync separate from sectors which didn't cause IO - there can be a
difference if a bitmap is being used to accelerate resync.

However when a speed is reported, we find the number of sectors processed
recently by subtracting an oldish io_sectors count from a current
'curr_resync' count.  This is wrong because curr_resync counts all sectors,
not just io sectors.

So, add a field to mddev to store the curren io_sectors separately from
curr_resync, and use that in the calculations.

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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