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authorIngo Molnar <mingo@elte.hu>2008-12-29 09:42:58 +0100
committerIngo Molnar <mingo@elte.hu>2008-12-29 10:37:07 +0100
commit0ce74d9296c971b2355c26984ad0bc538e34dd6c (patch)
tree566d03e2a4f6b42dab9628cd82c93cd61d587467 /kernel/cgroup.c
parent1cc4fff0b360aeffeedb7d6db5089d88dd861700 (diff)
parent3c92ec8ae91ecf59d88c798301833d7cf83f2179 (diff)
Merge branch 'linus' into timers/hrtimers
Conflicts: sound/drivers/pcsp/pcsp.c Semantic conflict: sound/core/hrtimer.c
Diffstat (limited to 'kernel/cgroup.c')
-rw-r--r--kernel/cgroup.c17
1 files changed, 10 insertions, 7 deletions
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 2606d0fb4e54..48348dde6d81 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -571,8 +571,8 @@ static struct inode *cgroup_new_inode(mode_t mode, struct super_block *sb)
if (inode) {
inode->i_mode = mode;
- inode->i_uid = current->fsuid;
- inode->i_gid = current->fsgid;
+ inode->i_uid = current_fsuid();
+ inode->i_gid = current_fsgid();
inode->i_blocks = 0;
inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
inode->i_mapping->backing_dev_info = &cgroup_backing_dev_info;
@@ -1280,6 +1280,7 @@ int cgroup_attach_task(struct cgroup *cgrp, struct task_struct *tsk)
static int attach_task_by_pid(struct cgroup *cgrp, u64 pid)
{
struct task_struct *tsk;
+ const struct cred *cred = current_cred(), *tcred;
int ret;
if (pid) {
@@ -1289,14 +1290,16 @@ static int attach_task_by_pid(struct cgroup *cgrp, u64 pid)
rcu_read_unlock();
return -ESRCH;
}
- get_task_struct(tsk);
- rcu_read_unlock();
- if ((current->euid) && (current->euid != tsk->uid)
- && (current->euid != tsk->suid)) {
- put_task_struct(tsk);
+ tcred = __task_cred(tsk);
+ if (cred->euid &&
+ cred->euid != tcred->uid &&
+ cred->euid != tcred->suid) {
+ rcu_read_unlock();
return -EACCES;
}
+ get_task_struct(tsk);
+ rcu_read_unlock();
} else {
tsk = current;
get_task_struct(tsk);