From 865a0221c7e25d3a59ef5cd9fa7c9f2eb5b0a21b Mon Sep 17 00:00:00 2001 From: Vishal Verma Date: Mon, 5 Mar 2018 16:56:13 -0700 Subject: [PATCH] libnvdimm, {btt, blk}: do integrity setup before add_disk() commit 3ffb0ba9b567a8efb9a04ed3d1ec15ff333ada22 upstream. Prior to 25520d55cdb6 ("block: Inline blk_integrity in struct gendisk") we needed to temporarily add a zero-capacity disk before registering for blk-integrity. But adding a zero-capacity disk caused the partition table scanning to bail early, and this resulted in partitions not coming up after a probe of the BTT or blk namespaces. We can now register for integrity before the disk has been added, and this fixes the rescan problems. Fixes: 25520d55cdb6 ("block: Inline blk_integrity in struct gendisk") Reported-by: Dariusz Dokupil Cc: Signed-off-by: Vishal Verma Signed-off-by: Dan Williams Signed-off-by: Greg Kroah-Hartman --- drivers/nvdimm/blk.c | 3 +-- drivers/nvdimm/btt.c | 3 +-- 2 files changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/nvdimm/blk.c b/drivers/nvdimm/blk.c index 345acca576b3..1bd7b3734751 100644 --- a/drivers/nvdimm/blk.c +++ b/drivers/nvdimm/blk.c @@ -278,8 +278,6 @@ static int nsblk_attach_disk(struct nd_namespace_blk *nsblk) disk->queue = q; disk->flags = GENHD_FL_EXT_DEVT; nvdimm_namespace_disk_name(&nsblk->common, disk->disk_name); - set_capacity(disk, 0); - device_add_disk(dev, disk); if (devm_add_action_or_reset(dev, nd_blk_release_disk, disk)) return -ENOMEM; @@ -292,6 +290,7 @@ static int nsblk_attach_disk(struct nd_namespace_blk *nsblk) } set_capacity(disk, available_disk_size >> SECTOR_SHIFT); + device_add_disk(dev, disk); revalidate_disk(disk); return 0; } diff --git a/drivers/nvdimm/btt.c b/drivers/nvdimm/btt.c index 09428ebd315b..b2feda35966b 100644 --- a/drivers/nvdimm/btt.c +++ b/drivers/nvdimm/btt.c @@ -1542,8 +1542,6 @@ static int btt_blk_init(struct btt *btt) queue_flag_set_unlocked(QUEUE_FLAG_NONROT, btt->btt_queue); btt->btt_queue->queuedata = btt; - set_capacity(btt->btt_disk, 0); - device_add_disk(&btt->nd_btt->dev, btt->btt_disk); if (btt_meta_size(btt)) { int rc = nd_integrity_init(btt->btt_disk, btt_meta_size(btt)); @@ -1555,6 +1553,7 @@ static int btt_blk_init(struct btt *btt) } } set_capacity(btt->btt_disk, btt->nlba * btt->sector_size >> 9); + device_add_disk(&btt->nd_btt->dev, btt->btt_disk); btt->nd_btt->size = btt->nlba * (u64)btt->sector_size; revalidate_disk(btt->btt_disk); -- 2.20.1