redonkable/alistair23-linux
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alistair23-linux/drivers/infiniband/core
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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
..
addr.c Merge candidates for 4.17 merge window 2018-04-06 17:35:43 -07:00
agent.c IB/core: Rename ib_destroy_ah to rdma_destroy_ah 2017-05-01 14:32:43 -04:00
agent.h
cache.c IB/core: Fix deleting default GIDs when changing mac adddress 2018-04-23 17:28:18 -04:00
cgroup.c IB/core: added support to use rdma cgroup controller 2017-01-10 11:14:27 -05:00
cm.c IB/cm: Block processing alternate path handling RoCE Rx cm messages 2018-03-27 16:22:12 -06:00
cm_msgs.h
cma.c RDMA/cma: Do not query GID during QP state transition to RTR 2018-05-03 15:45:18 -04:00
cma_configfs.c IB/cma: use strlcpy() instead of strncpy() 2018-01-15 15:33:21 -07:00
cma_priv.h RDMA/cma: Move rdma_cm_state to cma_priv.h 2018-03-29 13:54:21 -06:00
core_priv.h IB/core: Move rdma_addr_find_l2_eth_by_grh to core_priv.h 2018-03-15 15:33:39 -06:00
cq.c RDMA/core: Reduce poll batch for direct cq polling 2018-03-06 20:08:39 -07:00
device.c Merge candidates for 4.17 merge window 2018-04-06 17:35:43 -07:00
fmr_pool.c infiniband: fix core/fmr_pool.c kernel-doc notation 2018-01-10 22:00:34 -07:00
iwcm.c RDMA/netlink: Fix general protection fault 2017-12-07 15:28:07 -05:00
iwcm.h
iwpm_msg.c RDMA/iwpm: Properly mark end of NL messages 2017-09-29 11:32:42 -04:00
iwpm_util.c RDMA/iwpm: fix memory leak on map_info 2018-04-27 14:20:47 -04:00
iwpm_util.h
mad.c IB/core: Make ib_mad_client_id atomic 2018-04-30 13:07:28 -04:00
mad_priv.h
mad_rmpp.c IB/mad: Change slid in RMPP recv from 16 to 32 bits 2017-08-08 14:47:18 -04:00
mad_rmpp.h
Makefile IB/uverbs: Add device memory registration ioctl support 2018-04-05 11:16:39 -06:00
mr_pool.c
multicast.c IB/core: Honor port_num while resolving GID for IB link layer 2018-03-15 14:40:37 -06:00
netlink.c RDMA/netlink: Simplify code of autoload modules 2018-01-02 13:36:57 -07:00
nldev.c RDMA/nldev: Provide netdevice name and index 2018-03-29 13:32:40 -06:00
opa_smi.h
packer.c
rdma_core.c IB/uverbs: Tidy uverbs_uobject_add 2018-02-28 12:55:03 -07:00
rdma_core.h IB/core: Add new ioctl interface 2017-08-31 08:35:09 -04:00
restrack.c RDMA/restrack: Remove ambiguity in resource track clean logic 2018-03-22 12:42:48 -06:00
roce_gid_mgmt.c IB/core: Fix deleting default GIDs when changing mac adddress 2018-04-23 17:28:18 -04:00
rw.c IB/core: remove redundant check on prot_sg_cnt 2017-10-10 10:49:45 -04:00
sa.h
sa_query.c IB/cma: Resolve route only while receiving CM requests 2018-03-23 10:58:05 -06:00
security.c Merge branch 'from-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git 2017-12-27 21:50:46 -07:00
smi.c
smi.h
sysfs.c IB/core: Refactor GID modify code for RoCE 2018-04-03 21:33:50 -06:00
ucm.c RDMA: Use u64_to_user_ptr everywhere 2018-03-29 13:42:29 -06:00
ucma.c RDMA/ucma: Allow resolving address w/o specifying source address 2018-04-23 11:04:05 -04:00
ud_header.c
umem.c IB/umem: Use the correct mm during ib_umem_release 2018-05-15 17:09:10 -06:00
umem_odp.c RDMA/umem: Avoid partial declaration of non-static function 2017-11-10 13:02:12 -05:00
user_mad.c vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
uverbs.h IB/uverbs: Add alloc/free dm uverbs ioctl support 2018-04-05 11:16:39 -06:00
uverbs_cmd.c IB/uverbs: Fix kernel crash during MR deregistration flow 2018-04-27 14:22:24 -04:00
uverbs_ioctl.c IB/uverbs: Fix validating mandatory attributes 2018-04-27 13:53:41 -04:00
uverbs_ioctl_merge.c IB/uverbs: Safely extend existing attributes 2018-03-19 14:45:17 -06:00
uverbs_main.c IB/uverbs: Enable ioctl() uAPI by default for new verbs 2018-03-19 14:45:17 -06:00
uverbs_marshall.c IB/core: Convert OPA AH to IB for Extended LIDs only 2017-11-13 15:53:57 -05:00
uverbs_std_types.c IB/uverbs: Add device memory registration ioctl support 2018-04-05 11:16:39 -06:00
uverbs_std_types_cq.c IB/uverbs: Enable ioctl() uAPI by default for new verbs 2018-03-19 14:45:17 -06:00
uverbs_std_types_dm.c IB/uverbs: Add alloc/free dm uverbs ioctl support 2018-04-05 11:16:39 -06:00
uverbs_std_types_flow_action.c IB/uverbs: Add missing braces in anonymous union initializers 2018-04-17 20:14:15 -06:00
uverbs_std_types_mr.c IB/uverbs: Add device memory registration ioctl support 2018-04-05 11:16:39 -06:00
verbs.c IB/uverbs: Fix kernel crash during MR deregistration flow 2018-04-27 14:22:24 -04:00