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authorJames Morris <jmorris@namei.org>2008-06-06 18:43:26 +1000
committerJames Morris <jmorris@namei.org>2008-07-14 15:01:56 +1000
commit972ccac2b237967ed7e56a50eb181b5a0a484b79 (patch)
tree44916f101e36cbb9c5c75eca91bd5a76250ea0c2 /security/selinux/ss
parent0804d1133c02cbdfba0055de774f2c21a8b777dc (diff)
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SELinux: open code load_mutex
Open code load_mutex as suggested by Andrew Morton. Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'security/selinux/ss')
-rw-r--r--security/selinux/ss/services.c21
1 files changed, 9 insertions, 12 deletions
diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c
index e8ec54db95b..d06df335ee7 100644
--- a/security/selinux/ss/services.c
+++ b/security/selinux/ss/services.c
@@ -71,10 +71,7 @@ int selinux_policycap_openperm;
extern const struct selinux_class_perm selinux_class_perm;
static DEFINE_RWLOCK(policy_rwlock);
-
static DEFINE_MUTEX(load_mutex);
-#define LOAD_LOCK mutex_lock(&load_mutex)
-#define LOAD_UNLOCK mutex_unlock(&load_mutex)
static struct sidtab sidtab;
struct policydb policydb;
@@ -1456,17 +1453,17 @@ int security_load_policy(void *data, size_t len)
int rc = 0;
struct policy_file file = { data, len }, *fp = &file;
- LOAD_LOCK;
+ mutex_lock(&load_mutex);
if (!ss_initialized) {
avtab_cache_init();
if (policydb_read(&policydb, fp)) {
- LOAD_UNLOCK;
+ mutex_unlock(&load_mutex);
avtab_cache_destroy();
return -EINVAL;
}
if (policydb_load_isids(&policydb, &sidtab)) {
- LOAD_UNLOCK;
+ mutex_unlock(&load_mutex);
policydb_destroy(&policydb);
avtab_cache_destroy();
return -EINVAL;
@@ -1475,7 +1472,7 @@ int security_load_policy(void *data, size_t len)
if (validate_classes(&policydb)) {
printk(KERN_ERR
"SELinux: the definition of a class is incorrect\n");
- LOAD_UNLOCK;
+ mutex_unlock(&load_mutex);
sidtab_destroy(&sidtab);
policydb_destroy(&policydb);
avtab_cache_destroy();
@@ -1485,7 +1482,7 @@ int security_load_policy(void *data, size_t len)
policydb_loaded_version = policydb.policyvers;
ss_initialized = 1;
seqno = ++latest_granting;
- LOAD_UNLOCK;
+ mutex_unlock(&load_mutex);
selinux_complete_init();
avc_ss_reset(seqno);
selnl_notify_policyload(seqno);
@@ -1499,12 +1496,12 @@ int security_load_policy(void *data, size_t len)
#endif
if (policydb_read(&newpolicydb, fp)) {
- LOAD_UNLOCK;
+ mutex_unlock(&load_mutex);
return -EINVAL;
}
if (sidtab_init(&newsidtab)) {
- LOAD_UNLOCK;
+ mutex_unlock(&load_mutex);
policydb_destroy(&newpolicydb);
return -ENOMEM;
}
@@ -1552,7 +1549,7 @@ int security_load_policy(void *data, size_t len)
seqno = ++latest_granting;
policydb_loaded_version = policydb.policyvers;
write_unlock_irq(&policy_rwlock);
- LOAD_UNLOCK;
+ mutex_unlock(&load_mutex);
/* Free the old policydb and SID table. */
policydb_destroy(&oldpolicydb);
@@ -1566,7 +1563,7 @@ int security_load_policy(void *data, size_t len)
return 0;
err:
- LOAD_UNLOCK;
+ mutex_unlock(&load_mutex);
sidtab_destroy(&newsidtab);
policydb_destroy(&newpolicydb);
return rc;