Commit da8840a7 authored May 22, 2012 by majianpeng Committed by NeilBrown May 22, 2012

md/raid1: allow fix_read_error to read from recovering device.



When attempting to fix a read error, it is acceptable to read from a
device that is recovering, provided the recovery has got past the
place we are reading from.  This makes the test for "can we read from
here" the same as the test in read_balance.

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

parent 4fa2f327

drivers/md/raid1.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -1859,7 +1859,9 @@ static void fix_read_error(struct r1conf *conf, int read_disk,

		rdev = conf->mirrors[d].rdev;
		if (rdev &&
		test_bit(In_sync, &rdev->flags) &&
		(test_bit(In_sync, &rdev->flags) \|\|
		(!test_bit(Faulty, &rdev->flags) &&
		rdev->recovery_offset >= sect + s)) &&
		is_badblock(rdev, sect, s,
		&first_bad, &bad_sectors) == 0 &&
		sync_page_io(rdev, sect, s<<9,