1 files changed, 32 insertions, 17 deletions

diff --git a/kernel/fork.c b/kernel/fork.c
index 3da978eec791..7f2e31ba33af 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -82,26 +82,26 @@ int nr_processes(void)
 #ifndef __HAVE_ARCH_TASK_STRUCT_ALLOCATOR
 # define alloc_task_struct()	kmem_cache_alloc(task_struct_cachep, GFP_KERNEL)
 # define free_task_struct(tsk)	kmem_cache_free(task_struct_cachep, (tsk))
-static kmem_cache_t *task_struct_cachep;
+static struct kmem_cache *task_struct_cachep;
 #endif
 
 /* SLAB cache for signal_struct structures (tsk->signal) */
-static kmem_cache_t *signal_cachep;
+static struct kmem_cache *signal_cachep;
 
 /* SLAB cache for sighand_struct structures (tsk->sighand) */
-kmem_cache_t *sighand_cachep;
+struct kmem_cache *sighand_cachep;
 
 /* SLAB cache for files_struct structures (tsk->files) */
-kmem_cache_t *files_cachep;
+struct kmem_cache *files_cachep;
 
 /* SLAB cache for fs_struct structures (tsk->fs) */
-kmem_cache_t *fs_cachep;
+struct kmem_cache *fs_cachep;
 
 /* SLAB cache for vm_area_struct structures */
-kmem_cache_t *vm_area_cachep;
+struct kmem_cache *vm_area_cachep;
 
 /* SLAB cache for mm_struct structures (tsk->mm) */
-static kmem_cache_t *mm_cachep;
+static struct kmem_cache *mm_cachep;
 
 void free_task(struct task_struct *tsk)
 {
@@ -237,7 +237,7 @@ static inline int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
 				goto fail_nomem;
 			charge = len;
 		}
-		tmp = kmem_cache_alloc(vm_area_cachep, SLAB_KERNEL);
+		tmp = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
 		if (!tmp)
 			goto fail_nomem;
 		*tmp = *mpnt;
@@ -319,7 +319,7 @@ static inline void mm_free_pgd(struct mm_struct * mm)
 
  __cacheline_aligned_in_smp DEFINE_SPINLOCK(mmlist_lock);
 
-#define allocate_mm()	(kmem_cache_alloc(mm_cachep, SLAB_KERNEL))
+#define allocate_mm()	(kmem_cache_alloc(mm_cachep, GFP_KERNEL))
 #define free_mm(mm)	(kmem_cache_free(mm_cachep, (mm)))
 
 #include <linux/init_task.h>
@@ -448,7 +448,16 @@ void mm_release(struct task_struct *tsk, struct mm_struct *mm)
 		tsk->vfork_done = NULL;
 		complete(vfork_done);
 	}
-	if (tsk->clear_child_tid && atomic_read(&mm->mm_users) > 1) {
+
+	/*
+	 * If we're exiting normally, clear a user-space tid field if
+	 * requested.  We leave this alone when dying by signal, to leave
+	 * the value intact in a core dump, and to save the unnecessary
+	 * trouble otherwise.  Userland only wants this done for a sys_exit.
+	 */
+	if (tsk->clear_child_tid
+	    && !(tsk->flags & PF_SIGNALED)
+	    && atomic_read(&mm->mm_users) > 1) {
 		u32 __user * tidptr = tsk->clear_child_tid;
 		tsk->clear_child_tid = NULL;
 
@@ -479,6 +488,10 @@ static struct mm_struct *dup_mm(struct task_struct *tsk)
 
 	memcpy(mm, oldmm, sizeof(*mm));
 
+	/* Initializing for Swap token stuff */
+	mm->token_priority = 0;
+	mm->last_interval = 0;
+
 	if (!mm_init(mm))
 		goto fail_nomem;
 
@@ -542,6 +555,10 @@ static int copy_mm(unsigned long clone_flags, struct task_struct * tsk)
 		goto fail_nomem;
 
 good_mm:
+	/* Initializing for Swap token stuff */
+	mm->token_priority = 0;
+	mm->last_interval = 0;
+
 	tsk->mm = mm;
 	tsk->active_mm = mm;
 	return 0;
@@ -613,7 +630,7 @@ static struct files_struct *alloc_files(void)
 	struct files_struct *newf;
 	struct fdtable *fdt;
 
-	newf = kmem_cache_alloc(files_cachep, SLAB_KERNEL);
+	newf = kmem_cache_alloc(files_cachep, GFP_KERNEL);
 	if (!newf)
 		goto out;
 
@@ -830,7 +847,6 @@ static inline int copy_signal(unsigned long clone_flags, struct task_struct * ts
 	if (clone_flags & CLONE_THREAD) {
 		atomic_inc(&current->signal->count);
 		atomic_inc(&current->signal->live);
-		taskstats_tgid_alloc(current);
 		return 0;
 	}
 	sig = kmem_cache_alloc(signal_cachep, GFP_KERNEL);
@@ -1303,7 +1319,7 @@ fork_out:
 	return ERR_PTR(retval);
 }
 
-struct pt_regs * __devinit __attribute__((weak)) idle_regs(struct pt_regs *regs)
+noinline struct pt_regs * __devinit __attribute__((weak)) idle_regs(struct pt_regs *regs)
 {
 	memset(regs, 0, sizeof(struct pt_regs));
 	return regs;
@@ -1315,9 +1331,8 @@ struct task_struct * __devinit fork_idle(int cpu)
 	struct pt_regs regs;
 
 	task = copy_process(CLONE_VM, 0, idle_regs(&regs), 0, NULL, NULL, 0);
-	if (!task)
-		return ERR_PTR(-ENOMEM);
-	init_idle(task, cpu);
+	if (!IS_ERR(task))
+		init_idle(task, cpu);
 
 	return task;
 }
@@ -1414,7 +1429,7 @@ long do_fork(unsigned long clone_flags,
 #define ARCH_MIN_MMSTRUCT_ALIGN 0
 #endif
 
-static void sighand_ctor(void *data, kmem_cache_t *cachep, unsigned long flags)
+static void sighand_ctor(void *data, struct kmem_cache *cachep, unsigned long flags)
 {
 	struct sighand_struct *sighand = data;