diff options
Diffstat (limited to 'include/linux/cred.h')
| -rw-r--r-- | include/linux/cred.h | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/include/linux/cred.h b/include/linux/cred.h index 6ef1750c93e2..49c26af37349 100644 --- a/include/linux/cred.h +++ b/include/linux/cred.h @@ -180,12 +180,18 @@ static inline bool cap_ambient_invariant_ok(const struct cred *cred) static inline const struct cred *override_creds(const struct cred *override_cred) { - return rcu_replace_pointer(current->cred, override_cred, 1); + const struct cred *old = current->cred; + + current->cred = override_cred; + return old; } static inline const struct cred *revert_creds(const struct cred *revert_cred) { - return rcu_replace_pointer(current->cred, revert_cred, 1); + const struct cred *override_cred = current->cred; + + current->cred = revert_cred; + return override_cred; } DEFINE_CLASS(override_creds, @@ -293,11 +299,10 @@ DEFINE_FREE(put_cred, struct cred *, if (!IS_ERR_OR_NULL(_T)) put_cred(_T)) /** * current_cred - Access the current task's subjective credentials * - * Access the subjective credentials of the current task. RCU-safe, - * since nobody else can modify it. + * Access the subjective credentials of the current task. + * Nobody else can modify it. */ -#define current_cred() \ - rcu_dereference_protected(current->cred, 1) +#define current_cred() (current->cred) /** * current_real_cred - Access the current task's objective credentials |