Merge branch 'linus' into core/rcu

Merge reason: Avoid fuzz in init/main.c and update from rc6 to rc8.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 5 insertions, 16 deletions

diff --git a/kernel/fork.c b/kernel/fork.c
index 642e8b5edf00..637520ca0386 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -426,7 +426,6 @@ static struct mm_struct * mm_init(struct mm_struct * mm, struct task_struct *p)
         init_rwsem(&mm->mmap_sem);
         INIT_LIST_HEAD(&mm->mmlist);
         mm->flags = (current->mm) ? current->mm->flags : default_dump_filter;
-        mm->oom_adj = (current->mm) ? current->mm->oom_adj : 0;
         mm->core_state = NULL;
         mm->nr_ptes = 0;
         set_mm_counter(mm, file_rss, 0);
@@ -816,11 +815,8 @@ static int copy_signal(unsigned long clone_flags, struct task_struct *tsk)
 {
         struct signal_struct *sig;
 
-        if (clone_flags & CLONE_THREAD) {
-                atomic_inc(&current->signal->count);
-                atomic_inc(&current->signal->live);
+        if (clone_flags & CLONE_THREAD)
                 return 0;
-        }
 
         sig = kmem_cache_alloc(signal_cachep, GFP_KERNEL);
         tsk->signal = sig;
@@ -878,16 +874,6 @@ void __cleanup_signal(struct signal_struct *sig)
         kmem_cache_free(signal_cachep, sig);
 }
 
-static void cleanup_signal(struct task_struct *tsk)
-{
-        struct signal_struct *sig = tsk->signal;
-
-        atomic_dec(&sig->live);
-
-        if (atomic_dec_and_test(&sig->count))
-                __cleanup_signal(sig);
-}
-
 static void copy_flags(unsigned long clone_flags, struct task_struct *p)
 {
         unsigned long new_flags = p->flags;
@@ -1237,6 +1223,8 @@ static struct task_struct *copy_process(unsigned long clone_flags,
         }
 
         if (clone_flags & CLONE_THREAD) {
+                atomic_inc(&current->signal->count);
+                atomic_inc(&current->signal->live);
                 p->group_leader = current->group_leader;
                 list_add_tail_rcu(&p->thread_group, &p->group_leader->thread_group);
         }
@@ -1280,7 +1268,8 @@ bad_fork_cleanup_mm:
         if (p->mm)
                 mmput(p->mm);
 bad_fork_cleanup_signal:
-        cleanup_signal(p);
+        if (!(clone_flags & CLONE_THREAD))
+                __cleanup_signal(p->signal);
 bad_fork_cleanup_sighand:
         __cleanup_sighand(p->sighand);
 bad_fork_cleanup_fs: