[POWERPC] Implement SLB shadow buffer

[powerpc.git] / kernel / fork.c

diff --git a/kernel/fork.c b/kernel/fork.c
index 56e4e07..1b0f7b1 100644 (file)
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -43,6 +43,8 @@
 #include <linux/rmap.h>
 #include <linux/acct.h>
 #include <linux/cn_proc.h>
+#include <linux/delayacct.h>
+#include <linux/taskstats_kern.h>
 
 #include <asm/pgtable.h>
 #include <asm/pgalloc.h>
@@ -61,9 +63,7 @@ int max_threads;              /* tunable limit on nr_threads */
 
 DEFINE_PER_CPU(unsigned long, process_counts) = 0;
 
- __cacheline_aligned DEFINE_RWLOCK(tasklist_lock);  /* outer */
-
-EXPORT_SYMBOL(tasklist_lock);
+__cacheline_aligned DEFINE_RWLOCK(tasklist_lock);  /* outer */
 
 int nr_processes(void)
 {
@@ -820,6 +820,7 @@ 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->signal);
                return 0;
        }
        sig = kmem_cache_alloc(signal_cachep, GFP_KERNEL);
@@ -864,6 +865,7 @@ static inline int copy_signal(unsigned long clone_flags, struct task_struct * ts
        INIT_LIST_HEAD(&sig->cpu_timers[0]);
        INIT_LIST_HEAD(&sig->cpu_timers[1]);
        INIT_LIST_HEAD(&sig->cpu_timers[2]);
+       taskstats_tgid_init(sig);
 
        task_lock(current->group_leader);
        memcpy(sig->rlim, current->signal->rlim, sizeof sig->rlim);
@@ -885,6 +887,7 @@ static inline int copy_signal(unsigned long clone_flags, struct task_struct * ts
 void __cleanup_signal(struct signal_struct *sig)
 {
        exit_thread_group_keys(sig);
+       taskstats_tgid_free(sig);
        kmem_cache_free(signal_cachep, sig);
 }
 
@@ -1002,6 +1005,7 @@ static struct task_struct *copy_process(unsigned long clone_flags,
                goto bad_fork_cleanup_put_domain;
 
        p->did_exec = 0;
+       delayacct_tsk_init(p);  /* Must remain after dup_task_struct() */
        copy_flags(clone_flags, p);
        p->pid = pid;
        retval = -EFAULT;