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

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commit 6f287ca604 upstream.

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.

[only the first chunk, due to b506335e5d ("md/raid10: skip spare disk as
'first' disk") being already applied - gregkh]

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>
Cc: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Guoqing Jiang
2017-04-06 09:12:18 +08:00
committed by Greg Kroah-Hartman
parent 4dee48a9ac
commit 9a89b88508
1 changed files with 1 additions and 0 deletions
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drivers/md/raid10.c
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@@ -3638,6 +3638,7 @@ static int run(struct mddev *mddev)
if (blk_queue_discard(bdev_get_queue(rdev->bdev)))
discard_supported = true;
first = 0;
}
if (mddev->queue) {