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| author | Steve Wise <swise@opengridcomputing.com> | 2010-03-03 15:06:34 +0000 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2010-03-11 14:00:35 -0800 |
| commit | 69960a275efc9d82797bbbe2460a2d6c9cace314 (patch) | |
| tree | 6cc110dfe51a5267563789655f141d99dcc6d8c0 | |
| parent | 25cf84cf377c0aae5dbcf937ea89bc7893db5176 (diff) | |
| download | linux-69960a275efc9d82797bbbe2460a2d6c9cace314.tar.gz linux-69960a275efc9d82797bbbe2460a2d6c9cace314.tar.bz2 linux-69960a275efc9d82797bbbe2460a2d6c9cace314.zip | |
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: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
| -rw-r--r-- | drivers/infiniband/hw/cxgb3/iwch.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/cxgb3/iwch.c b/drivers/infiniband/hw/cxgb3/iwch.c index ee1d8b4d4541..63f975f3e30f 100644 --- a/drivers/infiniband/hw/cxgb3/iwch.c +++ b/drivers/infiniband/hw/cxgb3/iwch.c @@ -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; |