md/raid1: factor several functions out or raid1d()
authorNeilBrown <neilb@suse.de>
Thu, 28 Jul 2011 01:38:13 +0000 (11:38 +1000)
committerNeilBrown <neilb@suse.de>
Thu, 28 Jul 2011 01:38:13 +0000 (11:38 +1000)
raid1d is too big with several deep branches.
So separate them out into their own functions.

Signed-off-by: NeilBrown <neilb@suse.de>
Reviewed-by: Namhyung Kim <namhyung@gmail.com>

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