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freezer: don't distinguish nosig tasks on thaw

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There's no point in thawing nosig tasks before others.  There's no
ordering requirement between the two groups on thaw, which the staged
thawing can't guarantee anyway.  Simplify thaw_processes() by removing
the distinction and collapsing thaw_tasks() into thaw_processes().
This will help further updates to freezer.

Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Tejun Heo 2011-11-21 12:32:23 -08:00
parent a585042f7b
commit 6cd8dedcdd
1 changed files with 7 additions and 13 deletions
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20
kernel/power/process.c
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@ -170,34 +170,28 @@ int freeze_kernel_threads(void)
return error;
}
static void thaw_tasks(bool nosig_only)
void thaw_processes(void)
{
struct task_struct *g, *p;
oom_killer_enable();
printk("Restarting tasks ... ");
thaw_workqueues();
read_lock(&tasklist_lock);
do_each_thread(g, p) {
if (!freezable(p))
continue;
if (nosig_only && should_send_signal(p))
continue;
if (cgroup_freezing_or_frozen(p))
continue;
__thaw_task(p);
} while_each_thread(g, p);
read_unlock(&tasklist_lock);
}
void thaw_processes(void)
{
oom_killer_enable();
printk("Restarting tasks ... ");
thaw_workqueues();
thaw_tasks(true);
thaw_tasks(false);
schedule();
printk("done.\n");
}