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md/raid10: skip spare disk as 'first' disk 

Commit 6f287ca(md/raid10: reset the 'first' at the end of loop) ignores
a case in reshape, the first rdev could be a spare disk, which shouldn't
be accounted as the first disk since it doesn't include the offset info.

Fix: 6f287ca(md/raid10: reset the 'first' at the end of loop)
Cc: Guoqing Jiang <gqjiang@suse.com>
Cc: NeilBrown <neilb@suse.com>
Signed-off-by: Shaohua Li <shli@fb.com>
This commit is contained in:
Shaohua Li 2017-05-01 12:15:07 -07:00
parent 43ac9b84a3
commit b506335e5d
1 changed files with 1 additions and 1 deletions
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2
drivers/md/raid10.c
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@ -4079,8 +4079,8 @@ static int raid10_start_reshape(struct mddev *mddev)
diff = 0;
if (first || diff < min_offset_diff)
min_offset_diff = diff;
first = 0;
}
first = 0;
}
if (max(before_length, after_length) > min_offset_diff)