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Commit 42a2c09f authored by Ilya Dryomov's avatar Ilya Dryomov
Browse files

libceph: open-code remove_{all,old}_osds() 



They are called only once, from ceph_osdc_stop() and
handle_osds_timeout() respectively.

Signed-off-by: default avatarIlya Dryomov <idryomov@gmail.com>
parent 0c0a8de1

net/ceph/osd_client.c

+21 −30
Original line number Diff line number Diff line
@@ -1126,18 +1126,6 @@ static void remove_osd(struct ceph_osd_client *osdc, struct ceph_osd *osd) 
	}

}



static void remove_all_osds(struct ceph_osd_client *osdc)

{

	dout("%s %p\n", __func__, osdc);

	mutex_lock(&osdc->request_mutex);

	while (!RB_EMPTY_ROOT(&osdc->osds)) {

		struct ceph_osd *osd = rb_entry(rb_first(&osdc->osds),

						struct ceph_osd, o_node);

		remove_osd(osdc, osd);

	}

	mutex_unlock(&osdc->request_mutex);

}



static void __move_osd_to_lru(struct ceph_osd_client *osdc,

			      struct ceph_osd *osd)

{
@@ -1165,20 +1153,6 @@ static void __remove_osd_from_lru(struct ceph_osd *osd) 
		list_del_init(&osd->o_osd_lru);

}



static void remove_old_osds(struct ceph_osd_client *osdc)

{

	struct ceph_osd *osd, *nosd;



	dout("__remove_old_osds %p\n", osdc);

	mutex_lock(&osdc->request_mutex);

	list_for_each_entry_safe(osd, nosd, &osdc->osd_lru, o_osd_lru) {

		if (time_before(jiffies, osd->lru_ttl))

			break;

		remove_osd(osdc, osd);

	}

	mutex_unlock(&osdc->request_mutex);

}



/*

 * reset osd connect

 */
@@ -1671,12 +1645,21 @@ static void handle_osds_timeout(struct work_struct *work) 
		container_of(work, struct ceph_osd_client,

			     osds_timeout_work.work);

	unsigned long delay = osdc->client->options->osd_idle_ttl / 4;

	struct ceph_osd *osd, *nosd;



	dout("osds timeout\n");

	dout("%s osdc %p\n", __func__, osdc);

	down_read(&osdc->map_sem);

	remove_old_osds(osdc);

	up_read(&osdc->map_sem);

	mutex_lock(&osdc->request_mutex);



	list_for_each_entry_safe(osd, nosd, &osdc->osd_lru, o_osd_lru) {

		if (time_before(jiffies, osd->lru_ttl))

			break;



		remove_osd(osdc, osd);

	}



	mutex_unlock(&osdc->request_mutex);

	up_read(&osdc->map_sem);

	schedule_delayed_work(&osdc->osds_timeout_work,

			      round_jiffies_relative(delay));

}
@@ -2722,11 +2705,19 @@ void ceph_osdc_stop(struct ceph_osd_client *osdc) 
	destroy_workqueue(osdc->notify_wq);

	cancel_delayed_work_sync(&osdc->timeout_work);

	cancel_delayed_work_sync(&osdc->osds_timeout_work);



	mutex_lock(&osdc->request_mutex);

	while (!RB_EMPTY_ROOT(&osdc->osds)) {

		struct ceph_osd *osd = rb_entry(rb_first(&osdc->osds),

						struct ceph_osd, o_node);

		remove_osd(osdc, osd);

	}

	mutex_unlock(&osdc->request_mutex);



	if (osdc->osdmap) {

		ceph_osdmap_destroy(osdc->osdmap);

		osdc->osdmap = NULL;

	}

	remove_all_osds(osdc);

	mempool_destroy(osdc->req_mempool);

	ceph_msgpool_destroy(&osdc->msgpool_op);

	ceph_msgpool_destroy(&osdc->msgpool_op_reply);