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authorTetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>2009-02-21 20:40:50 +0900
committerJames Morris <jmorris@namei.org>2009-02-23 09:45:05 +1100
commit1581e7ddbdd97443a134e1a0cc9d81256baf77a4 (patch)
tree54134783d9b61dea08b434e0d6e447ac8f8924b2 /security
parent0da0a420bb542b13ebae142109a9d2045ade0cb1 (diff)
downloadlinux-linaro-stable-1581e7ddbdd97443a134e1a0cc9d81256baf77a4.tar.gz
TOMOYO: Do not call tomoyo_realpath_init unless registered.
tomoyo_realpath_init() is unconditionally called by security_initcall(). But nobody will use realpath related functions if TOMOYO is not registered. So, let tomoyo_init() call tomoyo_realpath_init(). This patch saves 4KB of memory allocation if TOMOYO is not registered. Signed-off-by: Kentaro Takeda <takedakn@nttdata.co.jp> Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: Toshiharu Harada <haradats@nttdata.co.jp> Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'security')
-rw-r--r--security/tomoyo/realpath.c7
-rw-r--r--security/tomoyo/realpath.h3
-rw-r--r--security/tomoyo/tomoyo.c1
3 files changed, 5 insertions, 6 deletions
diff --git a/security/tomoyo/realpath.c b/security/tomoyo/realpath.c
index 5fd48d23a217..d47f16b844b2 100644
--- a/security/tomoyo/realpath.c
+++ b/security/tomoyo/realpath.c
@@ -371,10 +371,8 @@ const struct tomoyo_path_info *tomoyo_save_name(const char *name)
/**
* tomoyo_realpath_init - Initialize realpath related code.
- *
- * Returns 0.
*/
-static int __init tomoyo_realpath_init(void)
+void __init tomoyo_realpath_init(void)
{
int i;
@@ -388,11 +386,8 @@ static int __init tomoyo_realpath_init(void)
if (tomoyo_find_domain(TOMOYO_ROOT_NAME) != &tomoyo_kernel_domain)
panic("Can't register tomoyo_kernel_domain");
up_read(&tomoyo_domain_list_lock);
- return 0;
}
-security_initcall(tomoyo_realpath_init);
-
/* Memory allocated for temporary purpose. */
static atomic_t tomoyo_dynamic_memory_size;
diff --git a/security/tomoyo/realpath.h b/security/tomoyo/realpath.h
index 0ea541fcb53c..7ec9fc9cbc07 100644
--- a/security/tomoyo/realpath.h
+++ b/security/tomoyo/realpath.h
@@ -60,4 +60,7 @@ int tomoyo_read_memory_counter(struct tomoyo_io_buffer *head);
/* Set memory quota. */
int tomoyo_write_memory_quota(struct tomoyo_io_buffer *head);
+/* Initialize realpath related code. */
+void __init tomoyo_realpath_init(void);
+
#endif /* !defined(_SECURITY_TOMOYO_REALPATH_H) */
diff --git a/security/tomoyo/tomoyo.c b/security/tomoyo/tomoyo.c
index cc599b36a3a8..3eeeae12c4dc 100644
--- a/security/tomoyo/tomoyo.c
+++ b/security/tomoyo/tomoyo.c
@@ -287,6 +287,7 @@ static int __init tomoyo_init(void)
panic("Failure registering TOMOYO Linux");
printk(KERN_INFO "TOMOYO Linux initialized\n");
cred->security = &tomoyo_kernel_domain;
+ tomoyo_realpath_init();
return 0;
}