From: Anand Jain <Anand.Jain@xxxxxxxxxx>
The sysfs clean up self test like in the below code fails, since
fs_info->device_dir_kobject still points to its stale kobject.
Reseting this pointer will help to fix this.
open_ctree()
{
ret = btrfs_sysfs_add_one(fs_info);
::
+ 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;
+ }
Signed-off-by: Anand Jain <anand.jain@xxxxxxxxxx>
---
fs/btrfs/sysfs.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c
index adfac3e..15fead2 100644
--- a/fs/btrfs/sysfs.c
+++ b/fs/btrfs/sysfs.c
@@ -525,6 +525,7 @@ void btrfs_sysfs_remove_one(struct btrfs_fs_info *fs_info)
btrfs_kobj_rm_device(fs_info, NULL);
kobject_del(fs_info->device_dir_kobj);
kobject_put(fs_info->device_dir_kobj);
+ fs_info->device_dir_kobj = NULL;
addrm_unknown_feature_attrs(fs_info, false);
sysfs_remove_group(&fs_info->super_kobj, &btrfs_feature_attr_group);
__btrfs_sysfs_remove_one(fs_info);
--
2.0.0.153.g79dcccc
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