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path: root/drivers/md/dm.c
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Diffstat (limited to 'drivers/md/dm.c')
-rw-r--r--drivers/md/dm.c26
1 files changed, 5 insertions, 21 deletions
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index d2523fedca3..204a59fd872 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -184,11 +184,8 @@ struct mapped_device {
/* forced geometry settings */
struct hd_geometry geometry;
- /* sysfs handle */
- struct kobject kobj;
-
- /* wait until the kobject is released */
- struct completion kobj_completion;
+ /* kobject and completion */
+ struct dm_kobject_holder kobj_holder;
/* zero-length flush that will be cloned and submitted to targets */
struct bio flush_bio;
@@ -1907,7 +1904,7 @@ static struct mapped_device *alloc_dev(int minor)
init_waitqueue_head(&md->wait);
INIT_WORK(&md->work, dm_wq_work);
init_waitqueue_head(&md->eventq);
- init_completion(&md->kobj_completion);
+ init_completion(&md->kobj_holder.completion);
md->disk->major = _major;
md->disk->first_minor = minor;
@@ -2739,20 +2736,14 @@ struct gendisk *dm_disk(struct mapped_device *md)
struct kobject *dm_kobject(struct mapped_device *md)
{
- return &md->kobj;
+ return &md->kobj_holder.kobj;
}
-/*
- * struct mapped_device should not be exported outside of dm.c
- * so use this check to verify that kobj is part of md structure
- */
struct mapped_device *dm_get_from_kobject(struct kobject *kobj)
{
struct mapped_device *md;
- md = container_of(kobj, struct mapped_device, kobj);
- if (&md->kobj != kobj)
- return NULL;
+ md = container_of(kobj, struct mapped_device, kobj_holder.kobj);
if (test_bit(DMF_FREEING, &md->flags) ||
dm_deleting_md(md))
@@ -2762,13 +2753,6 @@ struct mapped_device *dm_get_from_kobject(struct kobject *kobj)
return md;
}
-struct completion *dm_get_completion_from_kobject(struct kobject *kobj)
-{
- struct mapped_device *md = container_of(kobj, struct mapped_device, kobj);
-
- return &md->kobj_completion;
-}
-
int dm_suspended_md(struct mapped_device *md)
{
return test_bit(DMF_SUSPENDED, &md->flags);