AuxXxilium/linux_dsm_epyc7002
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10c75ccb54
linux_dsm_epyc7002/drivers/infiniband/core
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Jason Gunthorpe 10c75ccb54 RDMA/umem: Prevent small pages from being returned by ib_umem_find_best_pgsz() 
rdma_for_each_block() makes assumptions about how the SGL is constructed
that don't work if the block size is below the page size used to to build
the SGL.

The rules for umem SGL construction require that the SG's all be PAGE_SIZE
aligned and we don't encode the actual byte offset of the VA range inside
the SGL using offset and length. So rdma_for_each_block() has no idea
where the actual starting/ending point is to compute the first/last block
boundary if the starting address should be within a SGL.

Fixing the SGL construction turns out to be really hard, and will be the
subject of other patches. For now block smaller pages.

Fixes: 4a35339958 ("RDMA/umem: Add API to find best driver supported page size in an MR")
Link: https://lore.kernel.org/r/2-v2-270386b7e60b+28f4-umem_1_jgg@nvidia.com
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Reviewed-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-09-09 15:33:17 -03:00
..
addr.c RDMA/addr: Mark addr_resolve as might_sleep() 2020-05-12 21:32:52 -03:00
agent.c RDMA: Mark if destroy address handle is in a sleepable context 2018-12-19 16:28:03 -07:00
agent.h
cache.c RDMA/core: Allocate the pkey cache only if the pkey_tbl_len is set 2020-07-20 16:18:16 -03:00
cgroup.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288 2019-06-05 17:36:37 +02:00
cm_msgs.h RDMA/cm: Remove CM message structs 2020-01-25 15:11:37 -04:00
cm_trace.c RDMA/cm: Replace pr_debug() call sites with tracepoints 2020-08-24 19:41:41 -03:00
cm_trace.h RDMA/cm: Add tracepoints to track MAD send operations 2020-08-24 19:41:41 -03:00
cm.c Linux 5.9-rc3 2020-08-31 12:28:12 -03:00
cma_configfs.c IB/cma: Fix ports memory leak in cma_configfs 2020-05-22 15:37:19 -03:00
cma_priv.h RDMA/ucma: Extend ucma_connect to receive ECE parameters 2020-05-27 16:05:05 -03:00
cma_trace.c RDMA/cma: Add trace points in RDMA Connection Manager 2020-01-07 16:10:53 -04:00
cma_trace.h RDMA/core: Move the rdma_show_ib_cm_event() macro 2020-08-24 16:01:47 -03:00
cma.c Linux 5.9-rc3 2020-08-31 12:28:12 -03:00
core_priv.h RDMA/core: Introduce shared CQ pool API 2020-05-29 16:09:02 -03:00
counters.c RDMA 5.9 merge window pull request 2020-08-06 16:43:36 -07:00
cq.c RDMA: Allow fail of destroy CQ 2020-09-09 14:14:29 -03:00
device.c RDMA/core: Fix spelling mistake "Could't" -> "Couldn't" 2020-08-20 08:31:41 -03:00
ib_core_uverbs.c RDMA/core: Ensure that rdma_user_mmap_entry_remove() is a fence 2020-01-25 14:48:33 -04:00
iwcm.c RDMA/iwcm: Fix iwcm work deallocation 2020-03-04 14:28:25 -04:00
iwcm.h
iwpm_msg.c RDMA/iwpm: Delete unnecessary checks before the macro call "dev_kfree_skb" 2019-08-27 13:09:23 -03:00
iwpm_util.c RDMA/iwpm: Delete unnecessary checks before the macro call "dev_kfree_skb" 2019-08-27 13:09:23 -03:00
iwpm_util.h infiniband: fix core/ipwm_util.h kernel-doc warnings 2019-10-22 14:45:31 -03:00
lag.c RDMA/core: Consider flow label when building skb 2020-05-06 16:51:43 -03:00
mad_priv.h IB/mad: Change atomics to refcount API 2020-06-24 16:43:45 -03:00
mad_rmpp.c IB/mad: Delete RMPP_STATE_CANCELING state 2020-06-24 16:43:45 -03:00
mad_rmpp.h
mad.c RDMA 5.9 merge window pull request 2020-08-06 16:43:36 -07:00
Makefile RDMA/cm: Replace pr_debug() call sites with tracepoints 2020-08-24 19:41:41 -03:00
mr_pool.c Linux 5.2-rc6 2019-06-28 21:18:23 -03:00
multicast.c RDMA: Allow ib_client's to fail when add() is called 2020-05-06 11:57:33 -03:00
netlink.c IB/core: Avoid deadlock during netlink message handling 2019-10-24 20:49:37 -03:00
nldev.c RDMA/netlink: Remove CAP_NET_RAW check when dump a raw QP 2020-07-29 15:51:19 -03:00
opa_smi.h RDMA: Start use ib_device_ops 2018-12-12 07:40:16 -07:00
packer.c
rdma_core.c RDMA/core: Change how failing destroy is handled during uobj abort 2020-09-09 13:16:48 -03:00
rdma_core.h IB/uverbs: Introduce create/destroy QP commands over ioctl 2020-05-21 20:39:36 -03:00
restrack.c RDMA/restrack: Remove PID namespace support 2019-10-23 15:58:31 -03:00
restrack.h RDMA/restrack: Remove PID namespace support 2019-10-23 15:58:31 -03:00
roce_gid_mgmt.c drivers: use in_dev_for_each_ifa_rtnl/rcu 2019-06-02 18:06:26 -07:00
rw.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
sa_query.c IB/sa: Resolv use-after-free in ib_nl_make_request() 2020-07-02 16:05:12 -03:00
sa.h
security.c RDMA/core: Ensure security pkey modify is not lost 2020-03-24 19:53:25 -03:00
smi.c
smi.h RDMA: Start use ib_device_ops 2018-12-12 07:40:16 -07:00
sysfs.c RDMA/core: Expose pkeys sysfs files only if pkey_tbl_len is set 2020-07-20 16:18:16 -03:00
trace.c RDMA/core: Clean up tracepoint headers 2020-07-06 14:54:46 -03:00
ucma.c RDMA/ucma: Fix resource leak on error path 2020-09-02 17:06:48 -03:00
ud_header.c RDMA/core: Use sizeof_field() helper 2020-05-27 13:46:05 -03:00
umem_odp.c mm/gup: remove task_struct pointer for all gup code 2020-08-12 10:58:04 -07:00
umem.c RDMA/umem: Prevent small pages from being returned by ib_umem_find_best_pgsz() 2020-09-09 15:33:17 -03:00
user_mad.c RDMA: Allow ib_client's to fail when add() is called 2020-05-06 11:57:33 -03:00
uverbs_cmd.c RDMA: Remove constant domain argument from flow creation call 2020-08-18 14:47:34 -03:00
uverbs_ioctl.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
uverbs_main.c RDMA/core: Align abort/commit object scheme for write() and ioctl() paths 2020-07-24 15:57:22 -03:00
uverbs_marshall.c
uverbs_std_types_async_fd.c RDMA/uverbs: Move IB_EVENT_DEVICE_FATAL to destroy_uobj 2020-05-12 17:02:25 -03:00
uverbs_std_types_counters.c RDMA: Make counters destroy symmetrical 2020-09-09 14:14:29 -03:00
uverbs_std_types_cq.c IB/uverbs: Enable CQ ioctl commands by default 2020-07-06 19:50:33 -03:00
uverbs_std_types_device.c RDMA/core: Align abort/commit object scheme for write() and ioctl() paths 2020-07-24 15:57:22 -03:00
uverbs_std_types_dm.c IB: When attrs.udata/ufile is available use that instead of uobject 2019-04-08 13:05:25 -03:00
uverbs_std_types_flow_action.c IB: When attrs.udata/ufile is available use that instead of uobject 2019-04-08 13:05:25 -03:00
uverbs_std_types_mr.c RDMA/mlx5: Add missing srcu_read_lock in ODP implicit flow 2020-07-24 16:44:06 -03:00
uverbs_std_types_qp.c IB/uverbs: Introduce create/destroy QP commands over ioctl 2020-05-21 20:39:36 -03:00
uverbs_std_types_srq.c IB/uverbs: Introduce create/destroy SRQ commands over ioctl 2020-05-21 20:39:35 -03:00
uverbs_std_types_wq.c RDMA: Restore ability to return error for destroy WQ 2020-09-09 14:14:29 -03:00
uverbs_std_types.c RDMA: Restore ability to fail on PD deallocate 2020-09-09 13:57:22 -03:00
uverbs_uapi.c IB/uverbs: Introduce create/destroy QP commands over ioctl 2020-05-21 20:39:36 -03:00
uverbs.h IB/uverbs: Extend CQ to get its own asynchronous event FD 2020-05-21 20:34:53 -03:00
verbs.c RDMA: Restore ability to return error for destroy WQ 2020-09-09 14:14:29 -03:00