mac80211: fix deauth before assoc

[safe/jmp/linux-2.6] / kernel / taskstats.c

diff --git a/kernel/taskstats.c b/kernel/taskstats.c
index 06b1754..11281d5 100644 (file)
--- a/kernel/taskstats.c
+++ b/kernel/taskstats.c
@@ -22,6 +22,7 @@
 #include <linux/delayacct.h>
 #include <linux/cpumask.h>
 #include <linux/percpu.h>
+#include <linux/slab.h>
 #include <linux/cgroupstats.h>
 #include <linux/cgroup.h>
 #include <linux/fs.h>
@@ -35,7 +36,7 @@
  */
 #define TASKSTATS_CPUMASK_MAXLEN       (100+6*NR_CPUS)
 
-static DEFINE_PER_CPU(__u32, taskstats_seqnum) = { 0 };
+static DEFINE_PER_CPU(__u32, taskstats_seqnum);
 static int family_registered;
 struct kmem_cache *taskstats_cache;
 
@@ -46,15 +47,13 @@ static struct genl_family family = {
        .maxattr        = TASKSTATS_CMD_ATTR_MAX,
 };
 
-static struct nla_policy taskstats_cmd_get_policy[TASKSTATS_CMD_ATTR_MAX+1]
-__read_mostly = {
+static const struct nla_policy taskstats_cmd_get_policy[TASKSTATS_CMD_ATTR_MAX+1] = {
        [TASKSTATS_CMD_ATTR_PID]  = { .type = NLA_U32 },
        [TASKSTATS_CMD_ATTR_TGID] = { .type = NLA_U32 },
        [TASKSTATS_CMD_ATTR_REGISTER_CPUMASK] = { .type = NLA_STRING },
        [TASKSTATS_CMD_ATTR_DEREGISTER_CPUMASK] = { .type = NLA_STRING },};
 
-static struct nla_policy
-cgroupstats_cmd_get_policy[CGROUPSTATS_CMD_ATTR_MAX+1] __read_mostly = {
+static const struct nla_policy cgroupstats_cmd_get_policy[CGROUPSTATS_CMD_ATTR_MAX+1] = {
        [CGROUPSTATS_CMD_ATTR_FD] = { .type = NLA_U32 },
 };
 
@@ -108,7 +107,7 @@ static int prepare_reply(struct genl_info *info, u8 cmd, struct sk_buff **skbp,
 /*
  * Send taskstats data in @skb to listener with nl_pid @pid
  */
-static int send_reply(struct sk_buff *skb, pid_t pid)
+static int send_reply(struct sk_buff *skb, struct genl_info *info)
 {
        struct genlmsghdr *genlhdr = nlmsg_data(nlmsg_hdr(skb));
        void *reply = genlmsg_data(genlhdr);
@@ -120,7 +119,7 @@ static int send_reply(struct sk_buff *skb, pid_t pid)
                return rc;
        }
 
-       return genlmsg_unicast(skb, pid);
+       return genlmsg_reply(skb, info);
 }
 
 /*
@@ -150,7 +149,7 @@ static void send_cpu_listeners(struct sk_buff *skb,
                        if (!skb_next)
                                break;
                }
-               rc = genlmsg_unicast(skb_cur, s->pid);
+               rc = genlmsg_unicast(&init_net, skb_cur, s->pid);
                if (rc == -ECONNREFUSED) {
                        s->valid = 0;
                        delcount++;
@@ -290,18 +289,17 @@ ret:
        return;
 }
 
-static int add_del_listener(pid_t pid, cpumask_t *maskp, int isadd)
+static int add_del_listener(pid_t pid, const struct cpumask *mask, int isadd)
 {
        struct listener_list *listeners;
        struct listener *s, *tmp;
        unsigned int cpu;
-       cpumask_t mask = *maskp;
 
-       if (!cpus_subset(mask, cpu_possible_map))
+       if (!cpumask_subset(mask, cpu_possible_mask))
                return -EINVAL;
 
        if (isadd == REGISTER) {
-               for_each_cpu_mask_nr(cpu, mask) {
+               for_each_cpu(cpu, mask) {
                        s = kmalloc_node(sizeof(struct listener), GFP_KERNEL,
                                         cpu_to_node(cpu));
                        if (!s)
@@ -320,7 +318,7 @@ static int add_del_listener(pid_t pid, cpumask_t *maskp, int isadd)
 
        /* Deregister or cleanup */
 cleanup:
-       for_each_cpu_mask_nr(cpu, mask) {
+       for_each_cpu(cpu, mask) {
                listeners = &per_cpu(listener_array, cpu);
                down_write(&listeners->sem);
                list_for_each_entry_safe(s, tmp, &listeners->list, list) {
@@ -335,7 +333,7 @@ cleanup:
        return 0;
 }
 
-static int parse(struct nlattr *na, cpumask_t *mask)
+static int parse(struct nlattr *na, struct cpumask *mask)
 {
        char *data;
        int len;
@@ -352,7 +350,7 @@ static int parse(struct nlattr *na, cpumask_t *mask)
        if (!data)
                return -ENOMEM;
        nla_strlcpy(data, na, len);
-       ret = cpulist_parse(data, *mask);
+       ret = cpulist_parse(data, mask);
        kfree(data);
        return ret;
 }
@@ -419,7 +417,7 @@ static int cgroupstats_user_cmd(struct sk_buff *skb, struct genl_info *info)
                goto err;
        }
 
-       rc = send_reply(rep_skb, info->snd_pid);
+       rc = send_reply(rep_skb, info);
 
 err:
        fput_light(file, fput_needed);
@@ -428,23 +426,33 @@ err:
 
 static int taskstats_user_cmd(struct sk_buff *skb, struct genl_info *info)
 {
-       int rc = 0;
+       int rc;
        struct sk_buff *rep_skb;
        struct taskstats *stats;
        size_t size;
-       cpumask_t mask;
+       cpumask_var_t mask;
+
+       if (!alloc_cpumask_var(&mask, GFP_KERNEL))
+               return -ENOMEM;
 
-       rc = parse(info->attrs[TASKSTATS_CMD_ATTR_REGISTER_CPUMASK], &mask);
+       rc = parse(info->attrs[TASKSTATS_CMD_ATTR_REGISTER_CPUMASK], mask);
        if (rc < 0)
-               return rc;
-       if (rc == 0)
-               return add_del_listener(info->snd_pid, &mask, REGISTER);
+               goto free_return_rc;
+       if (rc == 0) {
+               rc = add_del_listener(info->snd_pid, mask, REGISTER);
+               goto free_return_rc;
+       }
 
-       rc = parse(info->attrs[TASKSTATS_CMD_ATTR_DEREGISTER_CPUMASK], &mask);
+       rc = parse(info->attrs[TASKSTATS_CMD_ATTR_DEREGISTER_CPUMASK], mask);
        if (rc < 0)
+               goto free_return_rc;
+       if (rc == 0) {
+               rc = add_del_listener(info->snd_pid, mask, DEREGISTER);
+free_return_rc:
+               free_cpumask_var(mask);
                return rc;
-       if (rc == 0)
-               return add_del_listener(info->snd_pid, &mask, DEREGISTER);
+       }
+       free_cpumask_var(mask);
 
        /*
         * Size includes space for nested attributes
@@ -478,7 +486,7 @@ static int taskstats_user_cmd(struct sk_buff *skb, struct genl_info *info)
        } else
                goto err;
 
-       return send_reply(rep_skb, info->snd_pid);
+       return send_reply(rep_skb, info);
 err:
        nlmsg_free(rep_skb);
        return rc;