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-rw-r--r--kernel/audit.c8
-rw-r--r--kernel/auditfilter.c10
-rw-r--r--kernel/irq/manage.c82
3 files changed, 94 insertions, 6 deletions
diff --git a/kernel/audit.c b/kernel/audit.c
index e4956244ae50..939500317066 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -74,6 +74,8 @@ static int audit_initialized;
int audit_enabled;
int audit_ever_enabled;
+EXPORT_SYMBOL_GPL(audit_enabled);
+
/* Default state when kernel boots without any parameters. */
static int audit_default;
@@ -671,9 +673,9 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
pid = NETLINK_CREDS(skb)->pid;
uid = NETLINK_CREDS(skb)->uid;
- loginuid = NETLINK_CB(skb).loginuid;
- sessionid = NETLINK_CB(skb).sessionid;
- sid = NETLINK_CB(skb).sid;
+ loginuid = audit_get_loginuid(current);
+ sessionid = audit_get_sessionid(current);
+ security_task_getsecid(current, &sid);
seq = nlh->nlmsg_seq;
data = NLMSG_DATA(nlh);
diff --git a/kernel/auditfilter.c b/kernel/auditfilter.c
index add2819af71b..f8277c80d678 100644
--- a/kernel/auditfilter.c
+++ b/kernel/auditfilter.c
@@ -1238,6 +1238,7 @@ static int audit_filter_user_rules(struct netlink_skb_parms *cb,
for (i = 0; i < rule->field_count; i++) {
struct audit_field *f = &rule->fields[i];
int result = 0;
+ u32 sid;
switch (f->type) {
case AUDIT_PID:
@@ -1250,19 +1251,22 @@ static int audit_filter_user_rules(struct netlink_skb_parms *cb,
result = audit_comparator(cb->creds.gid, f->op, f->val);
break;
case AUDIT_LOGINUID:
- result = audit_comparator(cb->loginuid, f->op, f->val);
+ result = audit_comparator(audit_get_loginuid(current),
+ f->op, f->val);
break;
case AUDIT_SUBJ_USER:
case AUDIT_SUBJ_ROLE:
case AUDIT_SUBJ_TYPE:
case AUDIT_SUBJ_SEN:
case AUDIT_SUBJ_CLR:
- if (f->lsm_rule)
- result = security_audit_rule_match(cb->sid,
+ if (f->lsm_rule) {
+ security_task_getsecid(current, &sid);
+ result = security_audit_rule_match(sid,
f->type,
f->op,
f->lsm_rule,
NULL);
+ }
break;
}
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 9033c1c70828..094fafe86c96 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -134,6 +134,10 @@ int irq_set_affinity(unsigned int irq, const struct cpumask *cpumask)
irq_set_thread_affinity(desc);
}
#endif
+ if (desc->affinity_notify) {
+ kref_get(&desc->affinity_notify->kref);
+ schedule_work(&desc->affinity_notify->work);
+ }
desc->status |= IRQ_AFFINITY_SET;
raw_spin_unlock_irqrestore(&desc->lock, flags);
return 0;
@@ -155,6 +159,79 @@ int irq_set_affinity_hint(unsigned int irq, const struct cpumask *m)
}
EXPORT_SYMBOL_GPL(irq_set_affinity_hint);
+static void irq_affinity_notify(struct work_struct *work)
+{
+ struct irq_affinity_notify *notify =
+ container_of(work, struct irq_affinity_notify, work);
+ struct irq_desc *desc = irq_to_desc(notify->irq);
+ cpumask_var_t cpumask;
+ unsigned long flags;
+
+ if (!desc)
+ goto out;
+
+ if (!alloc_cpumask_var(&cpumask, GFP_KERNEL))
+ goto out;
+
+ raw_spin_lock_irqsave(&desc->lock, flags);
+#ifdef CONFIG_GENERIC_PENDING_IRQ
+ if (desc->status & IRQ_MOVE_PENDING)
+ cpumask_copy(cpumask, desc->pending_mask);
+ else
+#endif
+ cpumask_copy(cpumask, desc->affinity);
+ raw_spin_unlock_irqrestore(&desc->lock, flags);
+
+ notify->notify(notify, cpumask);
+
+ free_cpumask_var(cpumask);
+out:
+ kref_put(&notify->kref, notify->release);
+}
+
+/**
+ * irq_set_affinity_notifier - control notification of IRQ affinity changes
+ * @irq: Interrupt for which to enable/disable notification
+ * @notify: Context for notification, or %NULL to disable
+ * notification. Function pointers must be initialised;
+ * the other fields will be initialised by this function.
+ *
+ * Must be called in process context. Notification may only be enabled
+ * after the IRQ is allocated and must be disabled before the IRQ is
+ * freed using free_irq().
+ */
+int
+irq_set_affinity_notifier(unsigned int irq, struct irq_affinity_notify *notify)
+{
+ struct irq_desc *desc = irq_to_desc(irq);
+ struct irq_affinity_notify *old_notify;
+ unsigned long flags;
+
+ /* The release function is promised process context */
+ might_sleep();
+
+ if (!desc)
+ return -EINVAL;
+
+ /* Complete initialisation of *notify */
+ if (notify) {
+ notify->irq = irq;
+ kref_init(&notify->kref);
+ INIT_WORK(&notify->work, irq_affinity_notify);
+ }
+
+ raw_spin_lock_irqsave(&desc->lock, flags);
+ old_notify = desc->affinity_notify;
+ desc->affinity_notify = notify;
+ raw_spin_unlock_irqrestore(&desc->lock, flags);
+
+ if (old_notify)
+ kref_put(&old_notify->kref, old_notify->release);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(irq_set_affinity_notifier);
+
#ifndef CONFIG_AUTO_IRQ_AFFINITY
/*
* Generic version of the affinity autoselector.
@@ -1004,6 +1081,11 @@ void free_irq(unsigned int irq, void *dev_id)
if (!desc)
return;
+#ifdef CONFIG_SMP
+ if (WARN_ON(desc->affinity_notify))
+ desc->affinity_notify = NULL;
+#endif
+
chip_bus_lock(desc);
kfree(__free_irq(irq, dev_id));
chip_bus_sync_unlock(desc);