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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2011-05-19 17:00:06 +1000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2011-05-19 17:00:06 +1000
commit4c8440666b995f20604852b35dcfdbcc1d5931f1 (patch)
treeb3b6cd65ee275ba1adf9d2c050063f30ebbadb91 /include/linux/cred.h
parent751e1f5099f1568444fe2485f2485ca541d4952e (diff)
parentc560bbceaf6b06e52f1ef20131b76a3fdc0a2c19 (diff)
Merge branch 'merge' into next
Diffstat (limited to 'include/linux/cred.h')
-rw-r--r--include/linux/cred.h10
1 files changed, 8 insertions, 2 deletions
diff --git a/include/linux/cred.h b/include/linux/cred.h
index 9aeeb0ba200..be16b61283c 100644
--- a/include/linux/cred.h
+++ b/include/linux/cred.h
@@ -146,6 +146,7 @@ struct cred {
void *security; /* subjective LSM security */
#endif
struct user_struct *user; /* real user ID subscription */
+ struct user_namespace *user_ns; /* cached user->user_ns */
struct group_info *group_info; /* supplementary groups for euid/fsgid */
struct rcu_head rcu; /* RCU deletion hook */
};
@@ -354,10 +355,15 @@ static inline void put_cred(const struct cred *_cred)
#define current_fsgid() (current_cred_xxx(fsgid))
#define current_cap() (current_cred_xxx(cap_effective))
#define current_user() (current_cred_xxx(user))
-#define _current_user_ns() (current_cred_xxx(user)->user_ns)
#define current_security() (current_cred_xxx(security))
-extern struct user_namespace *current_user_ns(void);
+#ifdef CONFIG_USER_NS
+#define current_user_ns() (current_cred_xxx(user_ns))
+#else
+extern struct user_namespace init_user_ns;
+#define current_user_ns() (&init_user_ns)
+#endif
+
#define current_uid_gid(_uid, _gid) \
do { \