diff options
| author |   Joachim Fenkes <fenkes@de.ibm.com> | 2007-07-09 15:30:39 +0200 |
|---|---|---|
| committer |   Roland Dreier <rolandd@cisco.com> | 2007-07-09 20:12:27 -0700 |
| commit | 28db6beb420c756c61dd44d9f2786a0677159e74 (patch) | |
| tree | 3d5b7cfdfcfe80268bf47d84404d2d9a2034cc65 /drivers/infiniband/hw/ehca/ehca_classes.h | |
| parent | IB/ehca: Lock renaming, static initializers (diff) | |
| download | linux-dev-28db6beb420c756c61dd44d9f2786a0677159e74.tar.xz linux-dev-28db6beb420c756c61dd44d9f2786a0677159e74.zip | |
IB/ehca: Refactor sync between completions and destroy_cq using atomic_t
- ehca_cq.nr_events is made an atomic_t, eliminating a lot of locking.
- The CQ is removed from the CQ idr first now to make sure no more
completions are scheduled on that CQ. The "wait for all completions to
end" code becomes much simpler this way.
Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/hw/ehca/ehca_classes.h')
| -rw-r--r-- | drivers/infiniband/hw/ehca/ehca_classes.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/ehca/ehca_classes.h b/drivers/infiniband/hw/ehca/ehca_classes.h index 3550047c1375..8580f2a0ea57 100644 --- a/drivers/infiniband/hw/ehca/ehca_classes.h +++ b/drivers/infiniband/hw/ehca/ehca_classes.h @@ -174,8 +174,8 @@ struct ehca_cq { spinlock_t cb_lock; struct hlist_head qp_hashtab[QP_HASHTAB_LEN]; struct list_head entry; - u32 nr_callbacks; /* #events assigned to cpu by scaling code */ - u32 nr_events; /* #events seen */ + u32 nr_callbacks; /* #events assigned to cpu by scaling code */ + atomic_t nr_events; /* #events seen */ wait_queue_head_t wait_completion; spinlock_t task_lock; u32 ownpid; |