diff options
Diffstat (limited to 'kernel/cgroup.c')
-rw-r--r-- | kernel/cgroup.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/kernel/cgroup.c b/kernel/cgroup.c index fe00b3b983a8..2606d0fb4e54 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c | |||
@@ -702,7 +702,7 @@ static int rebind_subsystems(struct cgroupfs_root *root, | |||
702 | * any child cgroups exist. This is theoretically supportable | 702 | * any child cgroups exist. This is theoretically supportable |
703 | * but involves complex error handling, so it's being left until | 703 | * but involves complex error handling, so it's being left until |
704 | * later */ | 704 | * later */ |
705 | if (!list_empty(&cgrp->children)) | 705 | if (root->number_of_cgroups > 1) |
706 | return -EBUSY; | 706 | return -EBUSY; |
707 | 707 | ||
708 | /* Process each subsystem */ | 708 | /* Process each subsystem */ |
@@ -1024,7 +1024,7 @@ static int cgroup_get_sb(struct file_system_type *fs_type, | |||
1024 | if (ret == -EBUSY) { | 1024 | if (ret == -EBUSY) { |
1025 | mutex_unlock(&cgroup_mutex); | 1025 | mutex_unlock(&cgroup_mutex); |
1026 | mutex_unlock(&inode->i_mutex); | 1026 | mutex_unlock(&inode->i_mutex); |
1027 | goto drop_new_super; | 1027 | goto free_cg_links; |
1028 | } | 1028 | } |
1029 | 1029 | ||
1030 | /* EBUSY should be the only error here */ | 1030 | /* EBUSY should be the only error here */ |
@@ -1073,10 +1073,11 @@ static int cgroup_get_sb(struct file_system_type *fs_type, | |||
1073 | 1073 | ||
1074 | return simple_set_mnt(mnt, sb); | 1074 | return simple_set_mnt(mnt, sb); |
1075 | 1075 | ||
1076 | free_cg_links: | ||
1077 | free_cg_links(&tmp_cg_links); | ||
1076 | drop_new_super: | 1078 | drop_new_super: |
1077 | up_write(&sb->s_umount); | 1079 | up_write(&sb->s_umount); |
1078 | deactivate_super(sb); | 1080 | deactivate_super(sb); |
1079 | free_cg_links(&tmp_cg_links); | ||
1080 | return ret; | 1081 | return ret; |
1081 | } | 1082 | } |
1082 | 1083 | ||
@@ -2934,9 +2935,6 @@ int cgroup_clone(struct task_struct *tsk, struct cgroup_subsys *subsys, | |||
2934 | again: | 2935 | again: |
2935 | root = subsys->root; | 2936 | root = subsys->root; |
2936 | if (root == &rootnode) { | 2937 | if (root == &rootnode) { |
2937 | printk(KERN_INFO | ||
2938 | "Not cloning cgroup for unused subsystem %s\n", | ||
2939 | subsys->name); | ||
2940 | mutex_unlock(&cgroup_mutex); | 2938 | mutex_unlock(&cgroup_mutex); |
2941 | return 0; | 2939 | return 0; |
2942 | } | 2940 | } |