diff options
| author | Matan Barak <matanb@mellanox.com> | 2017-04-04 13:31:44 +0300 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2017-04-05 20:28:04 +0300 |
| commit | fd3c7904db6e05043398aee5c1448682acfb025b (patch) | |
| tree | c394cf76ca93e0a5a637cd268073ab91590483fd /include/rdma/ib_verbs.h | |
| parent | 6be60aed126ccd4dfb4a60d1dc2ecec0bca21b2e (diff) | |
| download | linux-fd3c7904db6e05043398aee5c1448682acfb025b.tar.xz | |
IB/core: Change idr objects to use the new schema
This changes only the handlers which deals with idr based objects to
use the new idr allocation, fetching and destruction schema.
This patch consists of the following changes:
(1) Allocation, fetching and destruction is done via idr ops.
(2) Context initializing and release is done through
uverbs_initialize_ucontext and uverbs_cleanup_ucontext.
(3) Ditching the live flag. Mostly, this is pretty straight
forward. The only place that is a bit trickier is in
ib_uverbs_open_qp. Commit [1] added code to check whether
the uobject is already live and initialized. This mostly
happens because of a race between open_qp and events.
We delayed assigning the uobject's pointer in order to
eliminate this race without using the live variable.
[1] commit a040f95dc819
("IB/core: Fix XRC race condition in ib_uverbs_open_qp")
Signed-off-by: Matan Barak <matanb@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'include/rdma/ib_verbs.h')
| -rw-r--r-- | include/rdma/ib_verbs.h | 13 |
1 files changed, 0 insertions, 13 deletions
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index d3efd22943e9..2e8f661c900a 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -1377,17 +1377,6 @@ struct ib_rdmacg_object { struct ib_ucontext { struct ib_device *device; struct ib_uverbs_file *ufile; - struct list_head pd_list; - struct list_head mr_list; - struct list_head mw_list; - struct list_head cq_list; - struct list_head qp_list; - struct list_head srq_list; - struct list_head ah_list; - struct list_head xrcd_list; - struct list_head rule_list; - struct list_head wq_list; - struct list_head rwq_ind_tbl_list; int closing; /* locking the uobjects_list */ @@ -1426,10 +1415,8 @@ struct ib_uobject { struct ib_rdmacg_object cg_obj; /* rdmacg object */ int id; /* index into kernel idr */ struct kref ref; - struct rw_semaphore mutex; /* protects .live */ atomic_t usecnt; /* protects exclusive access */ struct rcu_head rcu; /* kfree_rcu() overhead */ - int live; const struct uverbs_obj_type *type; }; |