Commit 7bee6074 authored Jul 14, 2015 by Keith Busch Committed by Jens Axboe Jul 15, 2015

NVMe: Reread partitions on metadata formats



This patch has the driver automatically reread partitions if a namespace
has a separate metadata format. Previously revalidating a disk was
sufficient to get the correct capacity set on such formatted drives,
but partitions that may exist would not have been surfaced.

Reported-by: Paul Grabinar <paul.grabinar@ranbarg.com>
Signed-off-by: Keith Busch <keith.busch@intel.com>
Cc: Matthew Wilcox <willy@linux.intel.com>
Tested-by: Paul Grabinar <paul.grabinar@ranbarg.com>
Signed-off-by: Jens Axboe <axboe@fb.com>

parent 77b5a084

drivers/block/nvme-core.c

+11 −2

Original line number	Diff line number	Diff line
		@@ -2108,8 +2108,17 @@ static void nvme_alloc_ns(struct nvme_dev *dev, unsigned nsid)
		goto out_free_disk;

		add_disk(ns->disk);
		if (ns->ms)
		revalidate_disk(ns->disk);
		if (ns->ms) {
		struct block_device *bd = bdget_disk(ns->disk, 0);
		if (!bd)
		return;
		if (blkdev_get(bd, FMODE_READ, NULL)) {
		bdput(bd);
		return;
		}
		blkdev_reread_part(bd);
		blkdev_put(bd, FMODE_READ);
		}
		return;
		out_free_disk:
		kfree(disk);