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| author |   Sasha Levin <levinsasha928@gmail.com> | 2012-04-28 07:40:01 +0200 |
|---|---|---|
| committer |   Roland Dreier <roland@purestorage.com> | 2012-05-08 11:17:48 -0700 |
| commit | 3e4d60a82e7ab4cd6e212b6834c6a48c79731957 (patch) | |
| tree | 9e03784ae5e92144ac5b19a8e76d0342118162c9 /drivers/infiniband/hw/ocrdma/ocrdma.h | |
| parent | RDMA/ocrdma: Remove write-only variables (diff) | |
| download | linux-dev-3e4d60a82e7ab4cd6e212b6834c6a48c79731957.tar.xz linux-dev-3e4d60a82e7ab4cd6e212b6834c6a48c79731957.zip | |
RDMA/ocrdma: Don't sleep in atomic notifier handler
Events sent to ocrdma_inet6addr_event() are sent from an atomic context,
therefore we can't try to lock a mutex within the notifier callback.
We could just switch the mutex to a spinlock since all it does it
protect a list, but I've gone ahead and switched the list to use RCU
instead. I couldn't fully test it since I don't have IB hardware, so
if it doesn't fully work for some reason let me know and I'll switch
it back to using a spinlock.
Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
[ Fixed locking in ocrdma_add(). - Roland ]
Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/infiniband/hw/ocrdma/ocrdma.h')
| -rw-r--r-- | drivers/infiniband/hw/ocrdma/ocrdma.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma.h b/drivers/infiniband/hw/ocrdma/ocrdma.h index d7a44b812dfc..85a69c958559 100644 --- a/drivers/infiniband/hw/ocrdma/ocrdma.h +++ b/drivers/infiniband/hw/ocrdma/ocrdma.h @@ -168,6 +168,7 @@ struct ocrdma_dev { struct be_dev_info nic_info; struct list_head entry; + struct rcu_head rcu; int id; }; |