4 files changed, 38 insertions, 28 deletions

diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index d8abe996e009..e9c2fb01e89b 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -2232,7 +2232,6 @@ static long cgroup_create(struct cgroup *parent, struct dentry *dentry,
 
         mutex_lock(&cgroup_mutex);
 
-        cgrp->flags = 0;
         INIT_LIST_HEAD(&cgrp->sibling);
         INIT_LIST_HEAD(&cgrp->children);
         INIT_LIST_HEAD(&cgrp->css_sets);
@@ -2242,6 +2241,9 @@ static long cgroup_create(struct cgroup *parent, struct dentry *dentry,
         cgrp->root = parent->root;
         cgrp->top_cgroup = parent->top_cgroup;
 
+        if (notify_on_release(parent))
+                set_bit(CGRP_NOTIFY_ON_RELEASE, &cgrp->flags);
+
         for_each_subsys(root, ss) {
                 struct cgroup_subsys_state *css = ss->create(ss, cgrp);
                 if (IS_ERR(css)) {
diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index 7a86e6432338..fcfb580c3afc 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -498,27 +498,36 @@ static int __kprobes in_kprobes_functions(unsigned long addr)
         return 0;
 }
 
+/*
+ * If we have a symbol_name argument, look it up and add the offset field
+ * to it. This way, we can specify a relative address to a symbol.
+ */
+static kprobe_opcode_t __kprobes *kprobe_addr(struct kprobe *p)
+{
+        kprobe_opcode_t *addr = p->addr;
+        if (p->symbol_name) {
+                if (addr)
+                        return NULL;
+                kprobe_lookup_name(p->symbol_name, addr);
+        }
+
+        if (!addr)
+                return NULL;
+        return (kprobe_opcode_t *)(((char *)addr) + p->offset);
+}
+
 static int __kprobes __register_kprobe(struct kprobe *p,
         unsigned long called_from)
 {
         int ret = 0;
         struct kprobe *old_p;
         struct module *probed_mod;
+        kprobe_opcode_t *addr;
 
-        /*
-         * If we have a symbol_name argument look it up,
-         * and add it to the address.  That way the addr
-         * field can either be global or relative to a symbol.
-         */
-        if (p->symbol_name) {
-                if (p->addr)
-                        return -EINVAL;
-                kprobe_lookup_name(p->symbol_name, p->addr);
-        }
-
-        if (!p->addr)
+        addr = kprobe_addr(p);
+        if (!addr)
                 return -EINVAL;
-        p->addr = (kprobe_opcode_t *)(((char *)p->addr)+ p->offset);
+        p->addr = addr;
 
         if (!kernel_text_address((unsigned long) p->addr) ||
             in_kprobes_functions((unsigned long) p->addr))
@@ -678,8 +687,7 @@ void __kprobes unregister_jprobe(struct jprobe *jp)
         unregister_kprobe(&jp->kp);
 }
 
-#ifdef ARCH_SUPPORTS_KRETPROBES
-
+#ifdef CONFIG_KRETPROBES
 /*
  * This kprobe pre_handler is registered with every kretprobe. When probe
  * hits it will set up the return probe.
@@ -722,12 +730,12 @@ int __kprobes register_kretprobe(struct kretprobe *rp)
         int ret = 0;
         struct kretprobe_instance *inst;
         int i;
-        void *addr = rp->kp.addr;
+        void *addr;
 
         if (kretprobe_blacklist_size) {
-                if (addr == NULL)
-                        kprobe_lookup_name(rp->kp.symbol_name, addr);
-                addr += rp->kp.offset;
+                addr = kprobe_addr(&rp->kp);
+                if (!addr)
+                        return -EINVAL;
 
                 for (i = 0; kretprobe_blacklist[i].name != NULL; i++) {
                         if (kretprobe_blacklist[i].addr == addr)
@@ -769,8 +777,7 @@ int __kprobes register_kretprobe(struct kretprobe *rp)
         return ret;
 }
 
-#else /* ARCH_SUPPORTS_KRETPROBES */
-
+#else /* CONFIG_KRETPROBES */
 int __kprobes register_kretprobe(struct kretprobe *rp)
 {
         return -ENOSYS;
@@ -781,8 +788,7 @@ static int __kprobes pre_handler_kretprobe(struct kprobe *p,
 {
         return 0;
 }
-
-#endif /* ARCH_SUPPORTS_KRETPROBES */
+#endif /* CONFIG_KRETPROBES */
 
 void __kprobes unregister_kretprobe(struct kretprobe *rp)
 {
diff --git a/kernel/marker.c b/kernel/marker.c
index 50effc01d9a2..48a4ea5afffd 100644
--- a/kernel/marker.c
+++ b/kernel/marker.c
@@ -698,14 +698,12 @@ int marker_probe_unregister(const char *name,
 {
         struct marker_entry *entry;
         struct marker_probe_closure *old;
-        int ret = 0;
+        int ret = -ENOENT;
 
         mutex_lock(&markers_mutex);
         entry = get_marker(name);
-        if (!entry) {
-                ret = -ENOENT;
+        if (!entry)
                 goto end;
-        }
         if (entry->rcu_pending)
                 rcu_barrier();
         old = marker_entry_remove_probe(entry, probe, probe_private);
@@ -713,12 +711,15 @@ int marker_probe_unregister(const char *name,
         marker_update_probes();         /* may update entry */
         mutex_lock(&markers_mutex);
         entry = get_marker(name);
+        if (!entry)
+                goto end;
         entry->oldptr = old;
         entry->rcu_pending = 1;
         /* write rcu_pending before calling the RCU callback */
         smp_wmb();
         call_rcu(&entry->rcu, free_old_closure);
         remove_marker(name);    /* Ignore busy error message */
+        ret = 0;
 end:
         mutex_unlock(&markers_mutex);
         return ret;
diff --git a/kernel/res_counter.c b/kernel/res_counter.c
index 16cbec2d5d60..efbfc0fc232f 100644
--- a/kernel/res_counter.c
+++ b/kernel/res_counter.c
@@ -113,6 +113,7 @@ ssize_t res_counter_write(struct res_counter *counter, int member,
 
         ret = -EINVAL;
 
+        strstrip(buf);
         if (write_strategy) {
                 if (write_strategy(buf, &tmp)) {
                         goto out_free;