diff options
Diffstat (limited to 'security/selinux/avc.c')
| -rw-r--r-- | security/selinux/avc.c | 28 |
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; } |