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authorPaul Mundt <lethal@linux-sh.org>2011-08-08 13:45:28 +0900
committerPaul Mundt <lethal@linux-sh.org>2011-08-08 13:45:28 +0900
commit77c7ee51a062bb595c501ec098125a68999c20c3 (patch)
treec5060ca5786ef353e005dae04b61d2c49967284d /include/linux/cred.h
parent1ba762209491e2496e58baffa3fd65d661f54404 (diff)
parent322a8b034003c0d46d39af85bf24fee27b902f48 (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into sh-latest
Conflicts: drivers/tty/serial/sh-sci.c Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'include/linux/cred.h')
-rw-r--r--include/linux/cred.h11
1 files changed, 6 insertions, 5 deletions
diff --git a/include/linux/cred.h b/include/linux/cred.h
index 48e82af1159..98f46efbe2d 100644
--- a/include/linux/cred.h
+++ b/include/linux/cred.h
@@ -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 **)&current->cred)
/**
* __task_cred - Access a task's objective credentials
@@ -307,7 +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; \
})
@@ -322,7 +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; \
})
@@ -341,7 +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))