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md/raid10: reset the 'first' at the end of loop 

We need to set "first = 0' at the end of rdev_for_each
loop, so we can get the array's min_offset_diff correctly
otherwise min_offset_diff just means the last rdev's
offset diff.

Suggested-by: NeilBrown <neilb@suse.com>
Signed-off-by: Guoqing Jiang <gqjiang@suse.com>
Reviewed-by: NeilBrown <neilb@suse.com>
Signed-off-by: Shaohua Li <shli@fb.com>
This commit is contained in:
Guoqing Jiang 2017-04-06 09:12:18 +08:00 committed by Shaohua Li
parent 7471fb77ce
commit 6f287ca604
1 changed files with 2 additions and 0 deletions
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2
drivers/md/raid10.c
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@ -3769,6 +3769,7 @@ static int raid10_run(struct mddev *mddev)
if (blk_queue_discard(bdev_get_queue(rdev->bdev)))
discard_supported = true;
first = 0;
}
if (mddev->queue) {
@ -4172,6 +4173,7 @@ static int raid10_start_reshape(struct mddev *mddev)
if (first || diff < min_offset_diff)
min_offset_diff = diff;
}
first = 0;
}
if (max(before_length, after_length) > min_offset_diff)