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| author |   Jason Gunthorpe <jgg@nvidia.com> | 2020-11-30 09:58:36 +0200 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2020-12-07 14:06:23 -0400 |
| commit | adac4cb3c1ff5c47c9f47be5d017a0e054176e3c (patch) | |
| tree | 45cefe975243d418e52288bd3604a120d6c48e05 /include/rdma/ib_verbs.h | |
| parent | RDMA/uverbs: Tidy input validation of ib_uverbs_rereg_mr() (diff) | |
| download | linux-dev-adac4cb3c1ff5c47c9f47be5d017a0e054176e3c.tar.xz linux-dev-adac4cb3c1ff5c47c9f47be5d017a0e054176e3c.zip | |
RDMA/uverbs: Check ODP in ib_check_mr_access() as well
No reason only one caller checks this. This properly blocks ODP
from the rereg flow if the device does not support ODP.
Link: https://lore.kernel.org/r/20201130075839.278575-3-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to '')
| -rw-r--r-- | include/rdma/ib_verbs.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index 7bee8abae35c..4fcbc6d3d0e0 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -4183,7 +4183,8 @@ struct ib_xrcd *ib_alloc_xrcd_user(struct ib_device *device, struct inode *inode, struct ib_udata *udata); int ib_dealloc_xrcd_user(struct ib_xrcd *xrcd, struct ib_udata *udata); -static inline int ib_check_mr_access(int flags) +static inline int ib_check_mr_access(struct ib_device *ib_dev, + unsigned int flags) { /* * Local write permission is required if remote write or @@ -4196,6 +4197,9 @@ static inline int ib_check_mr_access(int flags) if (flags & ~IB_ACCESS_SUPPORTED) return -EINVAL; + if (flags & IB_ACCESS_ON_DEMAND && + !(ib_dev->attrs.device_cap_flags & IB_DEVICE_ON_DEMAND_PAGING)) + return -EINVAL; return 0; } |