| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.9 094/102] md/raid10: reset the first at the end of loop | Date | Fri, 6 Apr 2018 15:24:15 +0200 |
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4.9-stable review patch. If anyone has any objections, please let me know.
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From: Guoqing Jiang <gqjiang@suse.com>
commit 6f287ca6046edd34ed83aafb7f9033c9c2e809e2 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 b506335e5d2b ("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>
--- drivers/md/raid10.c | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -3681,6 +3681,7 @@ static int raid10_run(struct mddev *mdde if (blk_queue_discard(bdev_get_queue(rdev->bdev))) discard_supported = true; + first = 0; } if (mddev->queue) {
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