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authorLinus Torvalds <torvalds@linux-foundation.org>2011-07-22 19:44:08 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2011-07-22 19:44:08 -0400
commit0342cbcfced2ee937d7c8e1c63f3d3082da7c7dc (patch)
treefb98291d321a50de2dfd99f9bcaa33274f0c3952 /security
parent391d6276db9fbdedfbc30e1b56390414f0e55988 (diff)
parent7f70893173b056df691b2ee7546bb44fd9abae6a (diff)
Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: rcu: Fix wrong check in list_splice_init_rcu() net,rcu: Convert call_rcu(xt_rateest_free_rcu) to kfree_rcu() sysctl,rcu: Convert call_rcu(free_head) to kfree vmalloc,rcu: Convert call_rcu(rcu_free_vb) to kfree_rcu() vmalloc,rcu: Convert call_rcu(rcu_free_va) to kfree_rcu() ipc,rcu: Convert call_rcu(ipc_immediate_free) to kfree_rcu() ipc,rcu: Convert call_rcu(free_un) to kfree_rcu() security,rcu: Convert call_rcu(sel_netport_free) to kfree_rcu() security,rcu: Convert call_rcu(sel_netnode_free) to kfree_rcu() ia64,rcu: Convert call_rcu(sn_irq_info_free) to kfree_rcu() block,rcu: Convert call_rcu(disk_free_ptbl_rcu_cb) to kfree_rcu() scsi,rcu: Convert call_rcu(fc_rport_free_rcu) to kfree_rcu() audit_tree,rcu: Convert call_rcu(__put_tree) to kfree_rcu() security,rcu: Convert call_rcu(whitelist_item_free) to kfree_rcu() md,rcu: Convert call_rcu(free_conf) to kfree_rcu()
Diffstat (limited to 'security')
-rw-r--r--security/device_cgroup.c10
-rw-r--r--security/selinux/netnode.c20
-rw-r--r--security/selinux/netport.c20
3 files changed, 5 insertions, 45 deletions
diff --git a/security/device_cgroup.c b/security/device_cgroup.c
index 1be68269e1c2..4450fbeec411 100644
--- a/security/device_cgroup.c
+++ b/security/device_cgroup.c
@@ -125,14 +125,6 @@ static int dev_whitelist_add(struct dev_cgroup *dev_cgroup,
125 return 0; 125 return 0;
126} 126}
127 127
128static void whitelist_item_free(struct rcu_head *rcu)
129{
130 struct dev_whitelist_item *item;
131
132 item = container_of(rcu, struct dev_whitelist_item, rcu);
133 kfree(item);
134}
135
136/* 128/*
137 * called under devcgroup_mutex 129 * called under devcgroup_mutex
138 */ 130 */
@@ -155,7 +147,7 @@ remove:
155 walk->access &= ~wh->access; 147 walk->access &= ~wh->access;
156 if (!walk->access) { 148 if (!walk->access) {
157 list_del_rcu(&walk->list); 149 list_del_rcu(&walk->list);
158 call_rcu(&walk->rcu, whitelist_item_free); 150 kfree_rcu(walk, rcu);
159 } 151 }
160 } 152 }
161} 153}
diff --git a/security/selinux/netnode.c b/security/selinux/netnode.c
index 3618251d0fdb..8b691a863186 100644
--- a/security/selinux/netnode.c
+++ b/security/selinux/netnode.c
@@ -69,22 +69,6 @@ static DEFINE_SPINLOCK(sel_netnode_lock);
69static struct sel_netnode_bkt sel_netnode_hash[SEL_NETNODE_HASH_SIZE]; 69static struct sel_netnode_bkt sel_netnode_hash[SEL_NETNODE_HASH_SIZE];
70 70
71/** 71/**
72 * sel_netnode_free - Frees a node entry
73 * @p: the entry's RCU field
74 *
75 * Description:
76 * This function is designed to be used as a callback to the call_rcu()
77 * function so that memory allocated to a hash table node entry can be
78 * released safely.
79 *
80 */
81static void sel_netnode_free(struct rcu_head *p)
82{
83 struct sel_netnode *node = container_of(p, struct sel_netnode, rcu);
84 kfree(node);
85}
86
87/**
88 * sel_netnode_hashfn_ipv4 - IPv4 hashing function for the node table 72 * sel_netnode_hashfn_ipv4 - IPv4 hashing function for the node table
89 * @addr: IPv4 address 73 * @addr: IPv4 address
90 * 74 *
@@ -193,7 +177,7 @@ static void sel_netnode_insert(struct sel_netnode *node)
193 rcu_dereference(sel_netnode_hash[idx].list.prev), 177 rcu_dereference(sel_netnode_hash[idx].list.prev),
194 struct sel_netnode, list); 178 struct sel_netnode, list);
195 list_del_rcu(&tail->list); 179 list_del_rcu(&tail->list);
196 call_rcu(&tail->rcu, sel_netnode_free); 180 kfree_rcu(tail, rcu);
197 } else 181 } else
198 sel_netnode_hash[idx].size++; 182 sel_netnode_hash[idx].size++;
199} 183}
@@ -306,7 +290,7 @@ static void sel_netnode_flush(void)
306 list_for_each_entry_safe(node, node_tmp, 290 list_for_each_entry_safe(node, node_tmp,
307 &sel_netnode_hash[idx].list, list) { 291 &sel_netnode_hash[idx].list, list) {
308 list_del_rcu(&node->list); 292 list_del_rcu(&node->list);
309 call_rcu(&node->rcu, sel_netnode_free); 293 kfree_rcu(node, rcu);
310 } 294 }
311 sel_netnode_hash[idx].size = 0; 295 sel_netnode_hash[idx].size = 0;
312 } 296 }
diff --git a/security/selinux/netport.c b/security/selinux/netport.c
index cfe2d72d3fb7..ae76e298de7d 100644
--- a/security/selinux/netport.c
+++ b/security/selinux/netport.c
@@ -68,22 +68,6 @@ static DEFINE_SPINLOCK(sel_netport_lock);
68static struct sel_netport_bkt sel_netport_hash[SEL_NETPORT_HASH_SIZE]; 68static struct sel_netport_bkt sel_netport_hash[SEL_NETPORT_HASH_SIZE];
69 69
70/** 70/**
71 * sel_netport_free - Frees a port entry
72 * @p: the entry's RCU field
73 *
74 * Description:
75 * This function is designed to be used as a callback to the call_rcu()
76 * function so that memory allocated to a hash table port entry can be
77 * released safely.
78 *
79 */
80static void sel_netport_free(struct rcu_head *p)
81{
82 struct sel_netport *port = container_of(p, struct sel_netport, rcu);
83 kfree(port);
84}
85
86/**
87 * sel_netport_hashfn - Hashing function for the port table 71 * sel_netport_hashfn - Hashing function for the port table
88 * @pnum: port number 72 * @pnum: port number
89 * 73 *
@@ -142,7 +126,7 @@ static void sel_netport_insert(struct sel_netport *port)
142 rcu_dereference(sel_netport_hash[idx].list.prev), 126 rcu_dereference(sel_netport_hash[idx].list.prev),
143 struct sel_netport, list); 127 struct sel_netport, list);
144 list_del_rcu(&tail->list); 128 list_del_rcu(&tail->list);
145 call_rcu(&tail->rcu, sel_netport_free); 129 kfree_rcu(tail, rcu);
146 } else 130 } else
147 sel_netport_hash[idx].size++; 131 sel_netport_hash[idx].size++;
148} 132}
@@ -241,7 +225,7 @@ static void sel_netport_flush(void)
241 list_for_each_entry_safe(port, port_tmp, 225 list_for_each_entry_safe(port, port_tmp,
242 &sel_netport_hash[idx].list, list) { 226 &sel_netport_hash[idx].list, list) {
243 list_del_rcu(&port->list); 227 list_del_rcu(&port->list);
244 call_rcu(&port->rcu, sel_netport_free); 228 kfree_rcu(port, rcu);
245 } 229 }
246 sel_netport_hash[idx].size = 0; 230 sel_netport_hash[idx].size = 0;
247 } 231 }