PM: convert do_each_thread to for_each_process_thread

as per 0c740d0afc3b (introduce for_each_thread() to replace the buggy
while_each_thread()) get rid of do_each_thread { } while_each_thread()
construct and replace it by a more error prone for_each_thread.

This patch doesn't introduce any user visible change.

Suggested-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/kernel/power/process.c b/kernel/power/process.c
index 5cc588c..7f0d434 100644 (file)
--- a/kernel/power/process.c
+++ b/kernel/power/process.c
@@ -46,13 +46,13 @@ static int try_to_freeze_tasks(bool user_only)
        while (true) {
                todo = 0;
                read_lock(&tasklist_lock);
-               do_each_thread(g, p) {
+               for_each_process_thread(g, p) {
                        if (p == current || !freeze_task(p))
                                continue;
 
                        if (!freezer_should_skip(p))
                                todo++;
-               } while_each_thread(g, p);
+               }
                read_unlock(&tasklist_lock);
 
                if (!user_only) {
@@ -93,11 +93,11 @@ static int try_to_freeze_tasks(bool user_only)
 
                if (!wakeup) {
                        read_lock(&tasklist_lock);
-                       do_each_thread(g, p) {
+                       for_each_process_thread(g, p) {
                                if (p != current && !freezer_should_skip(p)
                                    && freezing(p) && !frozen(p))
                                        sched_show_task(p);
-                       } while_each_thread(g, p);
+                       }
                        read_unlock(&tasklist_lock);
                }
        } else {
@@ -229,11 +229,11 @@ void thaw_processes(void)
        thaw_workqueues();
 
        read_lock(&tasklist_lock);
-       do_each_thread(g, p) {
+       for_each_process_thread(g, p) {
                /* No other threads should have PF_SUSPEND_TASK set */
                WARN_ON((p != curr) && (p->flags & PF_SUSPEND_TASK));
                __thaw_task(p);
-       } while_each_thread(g, p);
+       }
        read_unlock(&tasklist_lock);
 
        WARN_ON(!(curr->flags & PF_SUSPEND_TASK));
@@ -256,10 +256,10 @@ void thaw_kernel_threads(void)
        thaw_workqueues();
 
        read_lock(&tasklist_lock);
-       do_each_thread(g, p) {
+       for_each_process_thread(g, p) {
                if (p->flags & (PF_KTHREAD | PF_WQ_WORKER))
                        __thaw_task(p);
-       } while_each_thread(g, p);
+       }
        read_unlock(&tasklist_lock);
 
        schedule();