[PATCH] md: don't impose the MD_SB_DISKS limit on arrays without metadata.

From: NeilBrown <neilb@suse.com>
To: Shaohua Li <shli@kernel.org>
Cc: linux-raid@vger.kernel.org, ian_bruce@mail.ru
Subject: [PATCH] md: don't impose the MD_SB_DISKS limit on arrays without metadata.
Date: Wed, 01 Mar 2017 07:31:28 +1100	[thread overview]
Message-ID: <87k28aoy5b.fsf@notabene.neil.brown.name> (raw)

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These arrays, created with "mdadm --build" don't benefit from a limit.
The default will be used, which is '0' and is interpreted as "don't
impose a limit".

Reported-by: ian_bruce@mail.ru
Signed-off-by: NeilBrown <neilb@suse.com>
---
 drivers/md/md.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/md/md.c b/drivers/md/md.c
index ba485dcf1064..e0ac7f5a8e68 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -6464,9 +6464,8 @@ static int set_array_info(struct mddev *mddev, mdu_array_info_t *info)
 	mddev->layout        = info->layout;
 	mddev->chunk_sectors = info->chunk_size >> 9;
 
-	mddev->max_disks     = MD_SB_DISKS;
-
 	if (mddev->persistent) {
+		mddev->max_disks     = MD_SB_DISKS;
 		mddev->flags         = 0;
 		mddev->sb_flags         = 0;
 	}
-- 
2.11.0


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