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authorHannes Reinecke <hare@suse.de>2017-11-09 17:57:06 +0100
committerJens Axboe <axboe@kernel.dk>2017-11-10 19:53:25 -0700
commit17eac0996341cfd28b4093554e662fd82aa1c237 (patch)
treefea90c5771c2e5c4423381c473b942f30db78cc6 /block/genhd.c
parent5b85b826b8925b3f1910b6613eb82c4df240a5b5 (diff)
downloadlinux-0-day-17eac0996341cfd28b4093554e662fd82aa1c237.tar.gz
block: create 'slaves' and 'holders' entries for hidden gendisks
When creating nvme multipath devices we should populate the 'slaves' and 'holders' directorys properly to aid userspace topology detection. Signed-off-by: Hannes Reinecke <hare@suse.com> [hch: split from a larger patch] Reviewed-by: Keith Busch <keith.busch@intel.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/genhd.c')
-rw-r--r--block/genhd.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/block/genhd.c b/block/genhd.c
index 835e907..3de1671 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -585,14 +585,14 @@ static void register_disk(struct device *parent, struct gendisk *disk)
*/
pm_runtime_set_memalloc_noio(ddev, true);
+ disk->part0.holder_dir = kobject_create_and_add("holders", &ddev->kobj);
+ disk->slave_dir = kobject_create_and_add("slaves", &ddev->kobj);
+
if (disk->flags & GENHD_FL_HIDDEN) {
dev_set_uevent_suppress(ddev, 0);
return;
}
- disk->part0.holder_dir = kobject_create_and_add("holders", &ddev->kobj);
- disk->slave_dir = kobject_create_and_add("slaves", &ddev->kobj);
-
/* No minors to use for partitions */
if (!disk_part_scan_enabled(disk))
goto exit;
@@ -728,11 +728,11 @@ void del_gendisk(struct gendisk *disk)
WARN_ON(1);
}
- if (!(disk->flags & GENHD_FL_HIDDEN)) {
+ if (!(disk->flags & GENHD_FL_HIDDEN))
blk_unregister_region(disk_devt(disk), disk->minors);
- kobject_put(disk->part0.holder_dir);
- kobject_put(disk->slave_dir);
- }
+
+ kobject_put(disk->part0.holder_dir);
+ kobject_put(disk->slave_dir);
part_stat_set_all(&disk->part0, 0);
disk->part0.stamp = 0;