From: Anand Jain <Anand.Jain@xxxxxxxxxx>
The following test case fails indicating that, thread tried to init an initialized object.
kernel: [232104.016513] kobject (ffff880006c1c980): tried to init an initialized object, something is seriously wrong.
btrfs_sysfs_remove_one() self test code:
open_tree()
{
::
ret = btrfs_sysfs_add_one(fs_info);
if (ret) {
pr_err("BTRFS: failed to init sysfs interface: %d\n", ret);
goto fail_block_groups;
}
+ btrfs_sysfs_remove_one(fs_info);
+ ret = btrfs_sysfs_add_one(fs_info);
+ if (ret) {
+ pr_err("BTRFS: failed to init sysfs interface: %d\n", ret);
+ goto fail_block_groups;
+ }
cleaning up the unregistered kobject fixes this.
Signed-off-by: Anand Jain <anand.jain@xxxxxxxxxx>
---
fs/btrfs/sysfs.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c
index 92db3f6..68dcd17 100644
--- a/fs/btrfs/sysfs.c
+++ b/fs/btrfs/sysfs.c
@@ -439,6 +439,8 @@ static struct attribute *btrfs_attrs[] = {
static void btrfs_release_super_kobj(struct kobject *kobj)
{
struct btrfs_fs_info *fs_info = to_fs_info(kobj);
+
+ memset(&fs_info->super_kobj, 0, sizeof(struct kobject));
complete(&fs_info->kobj_unregister);
}
--
2.0.0.153.g79dcccc
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