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authorSerge E. Hallyn <serue@us.ibm.com>2009-06-01 22:47:19 -0500
committerJames Morris <jmorris@namei.org>2009-06-02 15:13:13 +1000
commitfbeb4a9c20d00e2550156f9e5a34473fbde59de2 (patch)
treed08881a9eb2d768722363d7022d2ae4da81494d9 /security/tomoyo
parent13b297d943828c4594527a2bd9c30ecd04e37886 (diff)
downloadlinux-linaro-stable-fbeb4a9c20d00e2550156f9e5a34473fbde59de2.tar.gz
tomoyo: avoid get+put of task_struct
Use task_cred_xxx(task, security) in tomoyo_real_domain() to avoid a get+put of the target cred. Signed-off-by: Serge E. Hallyn <serue@us.ibm.com> Acked-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'security/tomoyo')
-rw-r--r--security/tomoyo/tomoyo.h9
1 files changed, 1 insertions, 8 deletions
diff --git a/security/tomoyo/tomoyo.h b/security/tomoyo/tomoyo.h
index 41c6ebafb9c5..f12d5ada7dcb 100644
--- a/security/tomoyo/tomoyo.h
+++ b/security/tomoyo/tomoyo.h
@@ -90,17 +90,10 @@ static inline struct tomoyo_domain_info *tomoyo_domain(void)
return current_cred()->security;
}
-/* Caller holds tasklist_lock spinlock. */
static inline struct tomoyo_domain_info *tomoyo_real_domain(struct task_struct
*task)
{
- /***** CRITICAL SECTION START *****/
- const struct cred *cred = get_task_cred(task);
- struct tomoyo_domain_info *domain = cred->security;
-
- put_cred(cred);
- return domain;
- /***** CRITICAL SECTION END *****/
+ return task_cred_xxx(task, security);
}
#endif /* !defined(_SECURITY_TOMOYO_TOMOYO_H) */