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authorTetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>2009-12-08 09:34:43 +0900
committerJames Morris <jmorris@namei.org>2009-12-15 15:46:31 +1100
commitfdb8ebb729bbb640e64028a4f579a02ebc405727 (patch)
tree9dfca7422cb858cd05208734affab31d980030fe /security/tomoyo/realpath.c
parent86fc80f16e8a2449d5827bf1a9838b7fd9f70097 (diff)
downloadlinux-fdb8ebb729bbb640e64028a4f579a02ebc405727.tar.gz
TOMOYO: Use RCU primitives for list operation
Replace list operation with RCU primitives and replace down_read()/up_read() with srcu_read_lock()/srcu_read_unlock(). Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Acked-by: Serge Hallyn <serue@us.ibm.com> Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'security/tomoyo/realpath.c')
-rw-r--r--security/tomoyo/realpath.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/security/tomoyo/realpath.c b/security/tomoyo/realpath.c
index e3c7aa0fb70..62363b3bc71 100644
--- a/security/tomoyo/realpath.c
+++ b/security/tomoyo/realpath.c
@@ -402,11 +402,13 @@ void __init tomoyo_realpath_init(void)
INIT_LIST_HEAD(&tomoyo_name_list[i]);
INIT_LIST_HEAD(&tomoyo_kernel_domain.acl_info_list);
tomoyo_kernel_domain.domainname = tomoyo_save_name(TOMOYO_ROOT_NAME);
- list_add_tail(&tomoyo_kernel_domain.list, &tomoyo_domain_list);
- down_read(&tomoyo_domain_list_lock);
+ /*
+ * tomoyo_read_lock() is not needed because this function is
+ * called before the first "delete" request.
+ */
+ list_add_tail_rcu(&tomoyo_kernel_domain.list, &tomoyo_domain_list);
if (tomoyo_find_domain(TOMOYO_ROOT_NAME) != &tomoyo_kernel_domain)
panic("Can't register tomoyo_kernel_domain");
- up_read(&tomoyo_domain_list_lock);
}
/* Memory allocated for temporary purpose. */