Commit a3dfbdaa authored Oct 08, 2015 by Song Liu Committed by NeilBrown Nov 01, 2015

MD: kick out journal disk if it's not fresh



When journal disk is faulty and we are reassemabling the raid array, the
journal disk is old. We don't allow the journal disk added to the raid
array. Since journal disk is missing in the array, the raid5 will mark
the array readonly.

Signed-off-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Shaohua Li <shli@fb.com>
Signed-off-by: NeilBrown <neilb@suse.com>

parent 7dde2ad3

drivers/md/md.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -1608,7 +1608,8 @@ static int super_1_validate(struct mddev mddev, struct md_rdev rdev)
		++ev1;
		if (rdev->desc_nr >= 0 &&
		rdev->desc_nr < le32_to_cpu(sb->max_dev) &&
		le16_to_cpu(sb->dev_roles[rdev->desc_nr]) < MD_DISK_ROLE_MAX)
		(le16_to_cpu(sb->dev_roles[rdev->desc_nr]) < MD_DISK_ROLE_MAX \|\|
		le16_to_cpu(sb->dev_roles[rdev->desc_nr]) == MD_DISK_ROLE_JOURNAL))
		if (ev1 < mddev->events)
		return -EINVAL;
		} else if (mddev->bitmap) {

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