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RDMA third 5.9-rc pull request

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One fix for a bug that blktests hits when using rxe:
 
  - Tear down the CQ pool before waiting for all references to go away
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull rdma fix from Jason Gunthorpe:
 "One fix for a bug that blktests hits when using rxe: tear down the CQ
  pool before waiting for all references to go away"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
  RDMA/core: Fix ordering of CQ pool destruction
This commit is contained in:
Linus Torvalds 2020-09-25 09:49:19 -07:00
commit 33d04c66f5
1 changed files with 4 additions and 2 deletions
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6
drivers/infiniband/core/device.c
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@ -1285,6 +1285,8 @@ static void disable_device(struct ib_device *device)
remove_client_context(device, cid);
}
ib_cq_pool_destroy(device);
/* Pairs with refcount_set in enable_device */
ib_device_put(device);
wait_for_completion(&device->unreg_completion);
@ -1328,6 +1330,8 @@ static int enable_device_and_get(struct ib_device *device)
goto out;
}
ib_cq_pool_init(device);
down_read(&clients_rwsem);
xa_for_each_marked (&clients, index, client, CLIENT_REGISTERED) {
ret = add_client_context(device, client);
@ -1400,7 +1404,6 @@ int ib_register_device(struct ib_device *device, const char *name)
goto dev_cleanup;
}
ib_cq_pool_init(device);
ret = enable_device_and_get(device);
dev_set_uevent_suppress(&device->dev, false);
/* Mark for userspace that device is ready */
@ -1455,7 +1458,6 @@ static void __ib_unregister_device(struct ib_device *ib_dev)
goto out;
disable_device(ib_dev);
ib_cq_pool_destroy(ib_dev);
/* Expedite removing unregistered pointers from the hash table */
free_netdevs(ib_dev);