>From kmemleak:
hex dump (first 32 bytes):
03 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<ffffffff8175f5f6>] kmemleak_alloc+0x26/0x50
[<ffffffff8118f284>] kmem_cache_alloc+0x114/0x200
[<ffffffff81219281>] sysfs_new_dirent+0x51/0x130
[<ffffffff812196d2>] create_dir+0x42/0xd0
[<ffffffff812199ff>] sysfs_create_subdir+0x1f/0x30
[<ffffffff8121b50e>] internal_create_group+0x5e/0x270
[<ffffffff8121b753>] sysfs_create_group+0x13/0x20
[<ffffffffa069c99e>] btrfs_sysfs_add_one+0x7e/0x280 [btrfs]
[<ffffffffa0682792>] open_ctree+0x17d2/0x21f0 [btrfs]
[<ffffffffa065883a>] btrfs_mount+0x53a/0x7d0 [btrfs]
[<ffffffff811a3ad3>] mount_fs+0x43/0x1b0
[<ffffffff811bfa56>] vfs_kern_mount+0x76/0x120
[<ffffffff811c1d77>] do_mount+0x237/0xa70
[<ffffffff811c2640>] SyS_mount+0x90/0xe0
[<ffffffff8177ef12>] system_call_fastpath+0x16/0x1b
[<ffffffffffffffff>] 0xffffffffffffffff
unreferenced object 0xffff8804e37d45b8 (size 160):
Signed-off-by: Filipe David Borba Manana <fdmanana@xxxxxxxxx>
---
fs/btrfs/sysfs.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c
index 669fdf7..9576771 100644
--- a/fs/btrfs/sysfs.c
+++ b/fs/btrfs/sysfs.c
@@ -424,6 +424,8 @@ void btrfs_sysfs_remove_one(struct btrfs_fs_info *fs_info)
kobject_put(fs_info->device_dir_kobj);
kobject_del(fs_info->space_info_kobj);
kobject_put(fs_info->space_info_kobj);
+ sysfs_remove_group(&fs_info->super_kobj,
+ &btrfs_feature_attr_group);
kobject_del(&fs_info->super_kobj);
kobject_put(&fs_info->super_kobj);
wait_for_completion(&fs_info->kobj_unregister);
--
1.7.9.5
--
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