Merge "soc: qcom: memoffline: use a freezable unbounded workqueue for migration"

static bool is_rpm_controller;

static bool has_pend_offline_req;

static atomic_long_t totalram_pages_with_offline = ATOMIC_INIT(0);

static struct workqueue_struct *migrate_wq;

#define MODULE_CLASS_NAME	"mem-offline"

#define MIGRATE_TIMEOUT_SEC	(20)

static struct kobj_attribute stats_attr =

		__ATTR(stats, 0444, show_mem_stats, NULL);

static ssize_t show_anon_migrate(struct kobject *kobj,

					struct kobj_attribute *attr, char *buf)

{

	return scnprintf(buf, PAGE_SIZE, "%lu\n",

				atomic_read(&target_migrate_pages));

}

static ssize_t store_anon_migrate(struct kobject *kobj,

				struct kobj_attribute *attr, const char *buf,

				size_t size)

	atomic_add(val, &target_migrate_pages);

	if (!work_pending(&fill_movable_zone_work))

		queue_work(system_unbound_wq, &fill_movable_zone_work);

		queue_work(migrate_wq, &fill_movable_zone_work);

	return size;

}

		__ATTR(offline_granule, 0444, show_mem_offline_granule, NULL);

static struct kobj_attribute anon_migration_size_attr =

		__ATTR(anon_migrate, 0220, NULL, store_anon_migrate);

		__ATTR(anon_migrate, 0644, show_anon_migrate, store_anon_migrate);

static struct attribute *mem_root_attrs[] = {

		&stats_attr.attr,

	if (bypass_send_msg)

		pr_info("mem-offline: bypass mode\n");

	migrate_wq = alloc_workqueue("reverse_migrate_wq",

					WQ_UNBOUND | WQ_FREEZABLE, 0);

	if (!migrate_wq) {

		pr_err("Failed to create the worker for reverse migration\n");

		ret = -ENOMEM;

		goto err_sysfs_remove_group;

	}

	return 0;

err_sysfs_remove_group: