From: Neil Brown <neilb@suse.de>
Date: Sat, 12 Jul 2008 00:37:50 +0000 (+1000)
Subject: md: Tidy up rdev_size_store a bit:
X-Git-Tag: v2.6.27-rc1~957^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d7027458d68b2f1752a28016dcf2ffd0a7e8f567;p=pandora-kernel.git

md: Tidy up rdev_size_store a bit:

 - used strict_strtoull in place of simple_strtoull
 - use my_mddev in place of rdev->mddev (they have the same value)
and more significantly,
 - don't adjust mddev->size to fit, rather reject changes which make
   rdev->size smaller than mddev->size

Adjusting mddev->size is a hangover from bind_rdev_to_array which
does a similar thing.  But it really is a better design to insist that
mddev->size is set as required, then the rdev->sizes are set to allow
for that.  The previous way invites confusion.

Signed-off-by: NeilBrown <neilb@suse.de>
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