ext4_unregister_sysfs 3252 fs/ext4/ext4.h extern void ext4_unregister_sysfs(struct super_block *sb); ext4_unregister_sysfs 992 fs/ext4/super.c ext4_unregister_sysfs(sb); ext4_unregister_sysfs 4672 fs/ext4/super.c ext4_unregister_sysfs(sb);