linux/include/rdma
Jason Gunthorpe ca748c39ea RDMA/umem: Get rid of per_mm->notifier_count
This is intrinsically racy and the scheme is simply unnecessary. New MR
registration can wait for any on going invalidation to fully complete.

      CPU0                              CPU1
                                  if (atomic_read())
 if (atomic_dec_and_test() &&
     !list_empty())
  { /* not taken */ }
                                       list_add()

Putting the new UMEM into some kind of purgatory until another invalidate
rolls through..

Instead hold the read side of the umem_rwsem across the pair'd start/end
and get rid of the racy 'deferred add' approach.

Since all umem's in the rbt are always ready to go, also get rid of the
mn_counters_active stuff.

Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2018-09-21 11:58:36 -04:00
..
ib_addr.h RDMA: Remove duplicated include from ib_addr.h 2018-09-13 12:59:56 -04:00
ib_cache.h RDMA/smc: Replace ib_query_gid with rdma_get_gid_attr 2018-08-17 16:45:51 -06:00
ib_cm.h RDMA/cma: Constify path record, ib_cm_event, listen_id pointers 2018-07-30 20:49:04 -06:00
ib_fmr_pool.h
ib_hdrs.h IB/hfi1: Remove unnecessary fecn and becn fields 2018-02-01 15:43:29 -07:00
ib_mad.h RDMA: Fix storage of PortInfo CapabilityMask in the kernel 2018-07-10 11:06:45 -06:00
ib_marshall.h IB/core: Convert ah_attr from OPA to IB when copying to user 2017-08-08 14:47:18 -04:00
ib_pack.h IB/core: Fix calculation of maximum RoCE MTU 2017-10-18 12:11:36 -04:00
ib_pma.h IB/core: Display extended counter set if available 2015-12-23 15:58:30 -05:00
ib_sa.h IB/cm: Replace members of sa_path_rec with 'struct sgid_attr *' 2018-06-25 14:19:57 -06:00
ib_smi.h IB/core: Move SM class defines from ib_mad.h to ib_smi.h 2015-09-03 15:50:32 -04:00
ib_umem_odp.h RDMA/umem: Get rid of per_mm->notifier_count 2018-09-21 11:58:36 -04:00
ib_umem.h RDMA/umem: Get rid of struct ib_umem.odp_data 2018-09-21 11:54:46 -04:00
ib_verbs.h RDMA/umem: Use umem->owning_mm inside ODP 2018-09-21 11:58:36 -04:00
ib.h RDMA/core: Return bool instead of int 2018-07-30 20:49:04 -06:00
iw_cm.h rdma_cm: add rdma_reject_msg() helper function 2016-12-14 11:38:28 -05:00
iw_portmap.h RDMA/core: Enable the iWarp Port Mapper to provide the actual address of the connecting peer to its clients 2015-05-05 09:18:01 -04:00
mr_pool.h IB/core: add a simple MR pool 2016-05-13 13:37:18 -04:00
opa_addr.h include/rdma/opa_addr.h: Fix an endianness issue 2018-07-03 14:11:34 -06:00
opa_port_info.h IB/hfi1: Virtual Network Interface Controller (VNIC) HW support 2017-04-20 15:19:35 -04:00
opa_smi.h IB/mad: Eliminate redundant SM class version defines for OPA 2016-12-14 11:01:58 -05:00
opa_vnic.h IB/hfi1: Add support to receive 16B bypass packets 2017-08-22 14:22:37 -04:00
rdma_cm_ib.h RDMA/{cma, ucma}: Simplify and rename rdma_set_ib_paths 2018-01-10 22:00:33 -07:00
rdma_cm.h RDMA/core: Document CM @event_handler function 2018-09-11 09:21:36 -06:00
rdma_netlink.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
rdma_vt.h IB/{hfi1, qib, rdmavt}: Schedule multi RC/UC packets instead of posting 2018-09-11 09:55:02 -06:00
rdmavt_cq.h IB/{hfi1, rdmavt, qib}: Implement CQ completion vector support 2018-05-09 15:53:30 -04:00
rdmavt_mr.h IB/rdmavt: Handle dereg of inuse MRs properly 2017-08-28 19:12:31 -04:00
rdmavt_qp.h IB/rdmavt, IB/hfi1: Create device dependent s_flags 2018-06-19 11:49:46 -06:00
restrack.h RDMA/restrack: Change SPDX tag to properly reflect license 2018-06-05 14:04:20 -06:00
rw.h rdma core: Add rdma_rw_mr_payload() 2017-09-05 15:15:30 -04:00
uverbs_ioctl.h IB/uverbs: Add IDRs array attribute type to ioctl() interface 2018-09-11 09:28:06 -06:00
uverbs_named_ioctl.h IB/mlx5: Introduce driver create and destroy flow methods 2018-07-24 14:03:49 -06:00
uverbs_std_types.h RDMA/mlx5: Add flow actions support to raw create flow 2018-09-11 09:28:07 -06:00
uverbs_types.h IB/uverbs: Use uverbs_api to manage the object type inside the uobject 2018-08-10 16:06:24 -06:00