X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=kernel%2Ffork.c;h=73ad5cda1bcd277cf3c86c29bd851df3fc933c73;hb=581d62ab304fb43d2ae4de06527676661b171cf6;hp=a8dd75d4992bbaffb63310987291127c8bd96a6d;hpb=36f021b579d195cdc5fa6f3e2bab198b4bf70643;p=powerpc.git

diff --git a/kernel/fork.c b/kernel/fork.c
index a8dd75d499..73ad5cda1b 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -45,6 +45,7 @@
 #include <linux/acct.h>
 #include <linux/tsacct_kern.h>
 #include <linux/cn_proc.h>
+#include <linux/freezer.h>
 #include <linux/delayacct.h>
 #include <linux/taskstats_kern.h>
 #include <linux/random.h>
@@ -105,7 +106,7 @@ static struct kmem_cache *mm_cachep;
 
 void free_task(struct task_struct *tsk)
 {
-	free_thread_info(tsk->thread_info);
+	free_thread_info(tsk->stack);
 	rt_mutex_debug_task_free(tsk);
 	free_task_struct(tsk);
 }
@@ -175,7 +176,7 @@ static struct task_struct *dup_task_struct(struct task_struct *orig)
 	}
 
 	*tsk = *orig;
-	tsk->thread_info = ti;
+	tsk->stack = ti;
 	setup_thread_stack(tsk, orig);
 
 #ifdef CONFIG_CC_STACKPROTECTOR
@@ -875,6 +876,7 @@ static inline int copy_signal(unsigned long clone_flags, struct task_struct * ts
 	sig->utime = sig->stime = sig->cutime = sig->cstime = cputime_zero;
 	sig->nvcsw = sig->nivcsw = sig->cnvcsw = sig->cnivcsw = 0;
 	sig->min_flt = sig->maj_flt = sig->cmin_flt = sig->cmaj_flt = 0;
+	sig->inblock = sig->oublock = sig->cinblock = sig->coublock = 0;
 	sig->sched_time = 0;
 	INIT_LIST_HEAD(&sig->cpu_timers[0]);
 	INIT_LIST_HEAD(&sig->cpu_timers[1]);
@@ -955,7 +957,7 @@ static struct task_struct *copy_process(unsigned long clone_flags,
 					unsigned long stack_size,
 					int __user *parent_tidptr,
 					int __user *child_tidptr,
-					int pid)
+					struct pid *pid)
 {
 	int retval;
 	struct task_struct *p = NULL;
@@ -1022,7 +1024,7 @@ static struct task_struct *copy_process(unsigned long clone_flags,
 	p->did_exec = 0;
 	delayacct_tsk_init(p);	/* Must remain after dup_task_struct() */
 	copy_flags(clone_flags, p);
-	p->pid = pid;
+	p->pid = pid_nr(pid);
 	retval = -EFAULT;
 	if (clone_flags & CLONE_PARENT_SETTID)
 		if (put_user(p->pid, parent_tidptr))
@@ -1251,13 +1253,13 @@ static struct task_struct *copy_process(unsigned long clone_flags,
 			p->signal->tty = current->signal->tty;
 			p->signal->pgrp = process_group(current);
 			set_signal_session(p->signal, process_session(current));
-			attach_pid(p, PIDTYPE_PGID, process_group(p));
-			attach_pid(p, PIDTYPE_SID, process_session(p));
+			attach_pid(p, PIDTYPE_PGID, task_pgrp(current));
+			attach_pid(p, PIDTYPE_SID, task_session(current));
 
 			list_add_tail_rcu(&p->tasks, &init_task.tasks);
 			__get_cpu_var(process_counts)++;
 		}
-		attach_pid(p, PIDTYPE_PID, p->pid);
+		attach_pid(p, PIDTYPE_PID, pid);
 		nr_threads++;
 	}
 
@@ -1321,7 +1323,8 @@ struct task_struct * __cpuinit fork_idle(int cpu)
 	struct task_struct *task;
 	struct pt_regs regs;
 
-	task = copy_process(CLONE_VM, 0, idle_regs(&regs), 0, NULL, NULL, 0);
+	task = copy_process(CLONE_VM, 0, idle_regs(&regs), 0, NULL, NULL,
+				&init_struct_pid);
 	if (!IS_ERR(task))
 		init_idle(task, cpu);
 
@@ -1371,7 +1374,7 @@ long do_fork(unsigned long clone_flags,
 			clone_flags |= CLONE_PTRACE;
 	}
 
-	p = copy_process(clone_flags, stack_start, regs, stack_size, parent_tidptr, child_tidptr, nr);
+	p = copy_process(clone_flags, stack_start, regs, stack_size, parent_tidptr, child_tidptr, pid);
 	/*
 	 * Do this prior waking up the new thread - the thread pointer
 	 * might get invalid after that point, if the thread exits quickly.
@@ -1403,7 +1406,9 @@ long do_fork(unsigned long clone_flags,
 		}
 
 		if (clone_flags & CLONE_VFORK) {
+			freezer_do_not_count();
 			wait_for_completion(&vfork);
+			freezer_count();
 			if (unlikely (current->ptrace & PT_TRACE_VFORK_DONE)) {
 				current->ptrace_message = nr;
 				ptrace_notify ((PTRACE_EVENT_VFORK_DONE << 8) | SIGTRAP);
@@ -1420,12 +1425,13 @@ long do_fork(unsigned long clone_flags,
 #define ARCH_MIN_MMSTRUCT_ALIGN 0
 #endif
 
-static void sighand_ctor(void *data, struct kmem_cache *cachep, unsigned long flags)
+static void sighand_ctor(void *data, struct kmem_cache *cachep,
+			unsigned long flags)
 {
 	struct sighand_struct *sighand = data;
 
-	if (flags & SLAB_CTOR_CONSTRUCTOR)
-		spin_lock_init(&sighand->siglock);
+	spin_lock_init(&sighand->siglock);
+	INIT_LIST_HEAD(&sighand->signalfd_list);
 }
 
 void __init proc_caches_init(void)
@@ -1451,7 +1457,6 @@ void __init proc_caches_init(void)
 			SLAB_HWCACHE_ALIGN|SLAB_PANIC, NULL, NULL);
 }
 
-
 /*
  * Check constraints on flags passed to the unshare system call and
  * force unsharing of additional process context as appropriate.