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-rw-r--r--security/selinux/avc.c28
1 files changed, 7 insertions, 21 deletions
diff --git a/security/selinux/avc.c b/security/selinux/avc.c
index 0d00f4874f3..0afb990fdfa 100644
--- a/security/selinux/avc.c
+++ b/security/selinux/avc.c
@@ -88,7 +88,6 @@ struct avc_entry {
u32 tsid;
u16 tclass;
struct av_decision avd;
- atomic_t used; /* used recently */
};
struct avc_node {
@@ -316,16 +315,13 @@ static inline int avc_reclaim_node(void)
rcu_read_lock();
list_for_each_entry(node, &avc_cache.slots[hvalue], list) {
- if (atomic_dec_and_test(&node->ae.used)) {
- /* Recently Unused */
- avc_node_delete(node);
- avc_cache_stats_incr(reclaims);
- ecx++;
- if (ecx >= AVC_CACHE_RECLAIM) {
- rcu_read_unlock();
- spin_unlock_irqrestore(&avc_cache.slots_lock[hvalue], flags);
- goto out;
- }
+ avc_node_delete(node);
+ avc_cache_stats_incr(reclaims);
+ ecx++;
+ if (ecx >= AVC_CACHE_RECLAIM) {
+ rcu_read_unlock();
+ spin_unlock_irqrestore(&avc_cache.slots_lock[hvalue], flags);
+ goto out;
}
}
rcu_read_unlock();
@@ -345,7 +341,6 @@ static struct avc_node *avc_alloc_node(void)
INIT_RCU_HEAD(&node->rhead);
INIT_LIST_HEAD(&node->list);
- atomic_set(&node->ae.used, 1);
avc_cache_stats_incr(allocations);
if (atomic_inc_return(&avc_cache.active_nodes) > avc_cache_threshold)
@@ -378,15 +373,6 @@ static inline struct avc_node *avc_search_node(u32 ssid, u32 tsid, u16 tclass)
}
}
- if (ret == NULL) {
- /* cache miss */
- goto out;
- }
-
- /* cache hit */
- if (atomic_read(&ret->ae.used) != 1)
- atomic_set(&ret->ae.used, 1);
-out:
return ret;
}