On 12/6/18 5:48 PM, Thadeu Lima de Souza Cascardo wrote:
From: Christoph Hellwig <hch@xxxxxx> We'd like to track the slaves and holder for nvme multipath devices in the same standard fashion as all the other stacked block devices to make the life for things like distro installers easy. But struct block_device only exists while we have open instances, which we never have for the underlying devices of a nvme-multipath setup. But we can easily move the older list into struct hd_struct which exists all the time the block device exists, the only interesting bit is that we need a new mutex for it. Signed-off-by: Christoph Hellwig <hch@xxxxxx> --- block/genhd.c | 4 +++ block/partition-generic.c | 4 +++ drivers/block/drbd/drbd_nl.c | 4 +-- drivers/md/bcache/super.c | 8 +++--- drivers/md/dm.c | 4 +-- drivers/md/md.c | 4 +-- fs/block_dev.c | 48 ++++++++++++++++-------------------- include/linux/fs.h | 11 +++------ include/linux/genhd.h | 4 +++ 9 files changed, 47 insertions(+), 44 deletions(-)
Reviewed-by: Hannes Reinecke <hare@xxxxxxxx> Cheers, Hannes -- Dr. Hannes Reinecke Teamlead Storage & Networking hare@xxxxxxx +49 911 74053 688 SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton HRB 21284 (AG Nürnberg)
