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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>
hifive-unleashed-5.1
Keith Busch 2015-07-14 11:57:48 -06:00 committed by Jens Axboe
parent 77b5a08427
commit 7bee607472
1 changed files with 11 additions and 2 deletions
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13
drivers/block/nvme-core.c
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@ -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);