Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 69960a27 authored by Steve Wise's avatar Steve Wise Committed by Roland Dreier
Browse files

RDMA/cxgb3: Wait at least one schedule cycle during device removal 



During a hot-plug LLD removal event or an EEH error event, iw_cxgb3
must ensure that any/all threads that might be in a cxgb3 exported
function must return from the function before iw_cxgb3 returns from
its event processing.  Do this by calling synchronize_net().

Signed-off-by: default avatarSteve Wise <swise@opengridcomputing.com>
Signed-off-by: default avatarRoland Dreier <rolandd@cisco.com>
parent 25cf84cf

drivers/infiniband/hw/cxgb3/iwch.c

+2 −0
Original line number Diff line number Diff line
@@ -189,6 +189,7 @@ static void close_rnic_dev(struct t3cdev *tdev) 
	list_for_each_entry_safe(dev, tmp, &dev_list, entry) {

		if (dev->rdev.t3cdev_p == tdev) {

			dev->rdev.flags = CXIO_ERROR_FATAL;

			synchronize_net();

			cancel_delayed_work_sync(&dev->db_drop_task);

			list_del(&dev->entry);

			iwch_unregister_device(dev);
@@ -217,6 +218,7 @@ static void iwch_event_handler(struct t3cdev *tdev, u32 evt, u32 port_id) 
	switch (evt) {

	case OFFLOAD_STATUS_DOWN: {

		rdev->flags = CXIO_ERROR_FATAL;

		synchronize_net();

		event.event  = IB_EVENT_DEVICE_FATAL;

		dispatch = 1;

		break;