diff options
Diffstat (limited to 'include/linux/cred.h')
| -rw-r--r-- | include/linux/cred.h | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/include/linux/cred.h b/include/linux/cred.h index 82607992f308..98f46efbe2d2 100644 --- a/include/linux/cred.h +++ b/include/linux/cred.h @@ -16,7 +16,7 @@ #include <linux/init.h> #include <linux/key.h> #include <linux/selinux.h> -#include <asm/atomic.h> +#include <linux/atomic.h> struct user_struct; struct cred; @@ -265,10 +265,11 @@ static inline void put_cred(const struct cred *_cred) /** * current_cred - Access the current task's subjective credentials * - * Access the subjective credentials of the current task. + * Access the subjective credentials of the current task. RCU-safe, + * since nobody else can modify it. */ #define current_cred() \ - (current->cred) + (*(__force struct cred **)¤t->cred) /** * __task_cred - Access a task's objective credentials @@ -284,7 +285,6 @@ static inline void put_cred(const struct cred *_cred) ({ \ const struct task_struct *__t = (task); \ rcu_dereference_check(__t->real_cred, \ - rcu_read_lock_held() || \ task_is_dead(__t)); \ }) @@ -308,7 +308,7 @@ static inline void put_cred(const struct cred *_cred) ({ \ struct user_struct *__u; \ struct cred *__cred; \ - __cred = (struct cred *) current_cred(); \ + __cred = current_cred(); \ __u = get_uid(__cred->user); \ __u; \ }) @@ -323,7 +323,7 @@ static inline void put_cred(const struct cred *_cred) ({ \ struct group_info *__groups; \ struct cred *__cred; \ - __cred = (struct cred *) current_cred(); \ + __cred = current_cred(); \ __groups = get_group_info(__cred->group_info); \ __groups; \ }) @@ -342,7 +342,7 @@ static inline void put_cred(const struct cred *_cred) #define current_cred_xxx(xxx) \ ({ \ - current->cred->xxx; \ + current_cred()->xxx; \ }) #define current_uid() (current_cred_xxx(uid)) |