#include <linux/writeback.h> // Prototypes pdflush_operation()
#include <linux/kthread.h>
#include <linux/cpuset.h>
#include <linux/writeback.h> // Prototypes pdflush_operation()
#include <linux/kthread.h>
#include <linux/cpuset.h>
spin_lock_irqsave(&pdflush_lock, flags);
if (list_empty(&pdflush_list)) {
spin_lock_irqsave(&pdflush_lock, flags);
if (list_empty(&pdflush_list)) {