Merge branch 'omap-clock-fixes' of git://git.pwsan.com/linux-2.6

[linux-2.6-omap-h63xx.git] / kernel / fork.c

diff --git a/kernel/fork.c b/kernel/fork.c
index 51f138a131defc3586195ff63b5589d1989ebd12..989c7c202b3d831ef1aa9ad024872edd864c08ca 100644 (file)
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -60,6 +60,7 @@
 #include <linux/tty.h>
 #include <linux/proc_fs.h>
 #include <linux/blkdev.h>
+#include <linux/fs_struct.h>
 #include <trace/sched.h>
 #include <linux/magic.h>
 
@@ -644,6 +645,9 @@ static int copy_mm(unsigned long clone_flags, struct task_struct * tsk)
 
        tsk->min_flt = tsk->maj_flt = 0;
        tsk->nvcsw = tsk->nivcsw = 0;
+#ifdef CONFIG_DETECT_HUNG_TASK
+       tsk->last_switch_count = tsk->nvcsw + tsk->nivcsw;
+#endif
 
        tsk->mm = NULL;
        tsk->active_mm = NULL;
@@ -824,6 +828,8 @@ static int copy_signal(unsigned long clone_flags, struct task_struct *tsk)
        atomic_set(&sig->live, 1);
        init_waitqueue_head(&sig->wait_chldexit);
        sig->flags = 0;
+       if (clone_flags & CLONE_NEWPID)
+               sig->flags |= SIGNAL_UNKILLABLE;
        sig->group_exit_code = 0;
        sig->group_exit_task = NULL;
        sig->group_stop_count = 0;
@@ -1029,11 +1035,6 @@ static struct task_struct *copy_process(unsigned long clone_flags,
 
        p->default_timer_slack_ns = current->timer_slack_ns;
 
-#ifdef CONFIG_DETECT_SOFTLOCKUP
-       p->last_switch_count = 0;
-       p->last_switch_timestamp = 0;
-#endif
-
        task_io_accounting_init(&p->ioac);
        acct_clear_integrals(p);
 
@@ -1108,7 +1109,7 @@ static struct task_struct *copy_process(unsigned long clone_flags,
                goto bad_fork_cleanup_mm;
        if ((retval = copy_io(clone_flags, p)))
                goto bad_fork_cleanup_namespaces;
-       retval = copy_thread(0, clone_flags, stack_start, stack_size, p, regs);
+       retval = copy_thread(clone_flags, stack_start, stack_size, p, regs);
        if (retval)
                goto bad_fork_cleanup_io;
 
@@ -1246,8 +1247,6 @@ static struct task_struct *copy_process(unsigned long clone_flags,
                        p->signal->leader_pid = pid;
                        tty_kref_put(p->signal->tty);
                        p->signal->tty = tty_kref_get(current->signal->tty);
-                       set_task_pgrp(p, task_pgrp_nr(current));
-                       set_task_session(p, task_session_nr(current));
                        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);
@@ -1471,6 +1470,7 @@ void __init proc_caches_init(void)
        mm_cachep = kmem_cache_create("mm_struct",
                        sizeof(struct mm_struct), ARCH_MIN_MMSTRUCT_ALIGN,
                        SLAB_HWCACHE_ALIGN|SLAB_PANIC, NULL);
+       vm_area_cachep = KMEM_CACHE(vm_area_struct, SLAB_PANIC);
        mmap_init();
 }