linux/include/rdma
Lidong Chen 8e907ed488 IB/umem: Use the correct mm during ib_umem_release
User-space may invoke ibv_reg_mr and ibv_dereg_mr in different threads.

If ibv_dereg_mr is called after the thread which invoked ibv_reg_mr has
exited, get_pid_task will return NULL and ib_umem_release will not
decrease mm->pinned_vm.

Instead of using threads to locate the mm, use the overall tgid from the
ib_ucontext struct instead. This matches the behavior of ODP and
disassociate in handling the mm of the process that called ibv_reg_mr.

Cc: <stable@vger.kernel.org>
Fixes: 87773dd56d ("IB: ib_umem_release() should decrement mm->pinned_vm from ib_umem_get")
Signed-off-by: Lidong Chen <lidongchen@tencent.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-05-15 17:09:10 -06:00
..
ib_addr.h Merge candidates for 4.17 merge window 2018-04-06 17:35:43 -07:00
ib_cache.h IB/core: Fix comments of GID query functions 2018-03-15 14:40:36 -06:00
ib_cm.h IB/SA: Rename ib_sa_path_rec to sa_path_rec 2017-05-01 14:37:28 -04:00
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 IB/core: Enforce security on management datagrams 2017-05-23 12:27:21 -04:00
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_sa.h IB/cma: Resolve route only while receiving CM requests 2018-03-23 10:58:05 -06:00
ib_smi.h
ib_umem_odp.h RDMA/umem: Avoid partial declaration of non-static function 2017-11-10 13:02:12 -05:00
ib_umem.h IB/umem: Use the correct mm during ib_umem_release 2018-05-15 17:09:10 -06:00
ib_verbs.h Merge candidates for 4.17 merge window 2018-04-06 17:35:43 -07:00
ib.h new helper: uaccess_kernel() 2017-03-28 16:43:25 -04:00
iw_cm.h rdma_cm: add rdma_reject_msg() helper function 2016-12-14 11:38:28 -05:00
iw_portmap.h
mr_pool.h IB/core: add a simple MR pool 2016-05-13 13:37:18 -04:00
opa_addr.h IB/SA: Check dlid before SA agent queries for ClassPortInfo 2017-12-22 13:33:30 -07:00
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/cma: Move rdma_cm_state to cma_priv.h 2018-03-29 13:54:21 -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/uverbs: Extend uverbs_ioctl header with driver_id 2018-03-19 14:45:17 -06:00
rdmavt_cq.h IB/rdmavt: Add completion queue functions 2016-03-10 20:37:24 -05:00
rdmavt_mr.h IB/rdmavt: Handle dereg of inuse MRs properly 2017-08-28 19:12:31 -04:00
rdmavt_qp.h IB/rdmavt: Correct issues with read-mostly and send size cache lines 2017-10-04 15:39:45 -04:00
restrack.h RDMA/restrack: Remove ambiguity in resource track clean logic 2018-03-22 12:42:48 -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 device memory registration ioctl support 2018-04-05 11:16:39 -06:00
uverbs_named_ioctl.h IB/uverbs: Add macros to simplify adding driver specific attributes 2018-03-19 14:45:17 -06:00
uverbs_std_types.h IB/uverbs: Expose parsing tree of all common objects to providers 2018-03-19 14:45:17 -06:00
uverbs_types.h IB/core: Explicitly destroy an object while keeping uobject 2017-08-31 08:35:11 -04:00