tree: https://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup.git review-cgroup-reorg head: 8a6dc1a57dc250394be839aeb7741dc351e84da7 commit: 183e7e19c8e2dec9a4f64a3b40fe1c01e7c47f50 [8/13] cgroup: move cgroup v1 specific code to kernel/cgroup/cgroup-v1.c reproduce: # apt-get install sparse git checkout 183e7e19c8e2dec9a4f64a3b40fe1c01e7c47f50 make ARCH=x86_64 allmodconfig make C=1 CF=-D__CHECK_ENDIAN__ sparse warnings: (new ones prefixed by >>) include/linux/compiler.h:253:8: sparse: attribute 'no_sanitize_address': unknown attribute >> kernel/cgroup/cgroup-v1.c:695:16: sparse: incompatible types in comparison expression (different address spaces) vim +695 kernel/cgroup/cgroup-v1.c 679 struct css_task_iter it; 680 struct task_struct *tsk; 681 682 /* it should be kernfs_node belonging to cgroupfs and is a directory */ 683 if (dentry->d_sb->s_type != &cgroup_fs_type || !kn || 684 kernfs_type(kn) != KERNFS_DIR) 685 return -EINVAL; 686 687 mutex_lock(&cgroup_mutex); 688 689 /* 690 * We aren't being called from kernfs and there's no guarantee on 691 * @kn->priv's validity. For this and css_tryget_online_from_dir(), 692 * @kn->priv is RCU safe. Let's do the RCU dancing. 693 */ 694 rcu_read_lock(); > 695 cgrp = rcu_dereference(kn->priv); 696 if (!cgrp || cgroup_is_dead(cgrp)) { 697 rcu_read_unlock(); 698 mutex_unlock(&cgroup_mutex); 699 return -ENOENT; 700 } 701 rcu_read_unlock(); 702 703 css_task_iter_start(&cgrp->self, &it); --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation -- To unsubscribe from this list: send the line "unsubscribe cgroups" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
