From mboxrd@z Thu Jan 1 00:00:00 1970 From: Guoqing Jiang Subject: [PATCH] md/bitmap: don't read page from device with Bitmap_sync Date: Fri, 16 Jun 2017 17:19:27 +0800 Message-ID: <20170616091927.12959-1-gqjiang@suse.com> Return-path: Sender: linux-raid-owner@vger.kernel.org To: shli@kernel.org, neilb@suse.com Cc: linux-raid@vger.kernel.org, Guoqing Jiang List-Id: linux-raid.ids The device owns Bitmap_sync flag needs recovery to become in sync, and read page from this type device could get stale status. Signed-off-by: Guoqing Jiang --- When develop for clustered raid10 feature, if add a disk under grow mode in master node, I could get the "bitmap superblock UUID mismatch" warning due to the page is read from Bitmap_sync device. drivers/md/bitmap.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c index bf7419a..bf34cd8 100644 --- a/drivers/md/bitmap.c +++ b/drivers/md/bitmap.c @@ -156,7 +156,8 @@ static int read_sb_page(struct mddev *mddev, loff_t offset, rdev_for_each(rdev, mddev) { if (! test_bit(In_sync, &rdev->flags) - || test_bit(Faulty, &rdev->flags)) + || test_bit(Faulty, &rdev->flags) + || test_bit(Bitmap_sync, &rdev->flags)) continue; target = offset + index * (PAGE_SIZE/512); -- 2.10.0