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@xxxxxxxx>
Signed-off-by: Guoqing Jiang <gqjiang@xxxxxxxx>
---
drivers/md/raid10.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 0f13d57..e055ec9 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -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)
--
2.6.6
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