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| author |   Jason Gunthorpe <jgg@mellanox.com> | 2020-05-19 10:27:05 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2020-05-21 20:10:46 -0300 |
| commit | 0ac8903cbbe618d947b5815d6e0f7b044ee83aa3 (patch) | |
| tree | 7eeceaf743d60cd7558b2d385c4178f10d0b1047 /include/rdma/ib_verbs.h | |
| parent | Merge tag 'v5.7-rc6' into rdma.git for-next (diff) | |
| download | linux-dev-0ac8903cbbe618d947b5815d6e0f7b044ee83aa3.tar.xz linux-dev-0ac8903cbbe618d947b5815d6e0f7b044ee83aa3.zip | |
RDMA/core: Allow the ioctl layer to abort a fully created uobject
While creating a uobject every create reaches a point where the uobject is
fully initialized. For ioctls that go on to copy_to_user this means they
need to open code the destruction of a fully created uobject - ie the
RDMA_REMOVE_DESTROY sort of flow.
Open coding this creates bugs, eg the CQ does not properly flush the
events list when it does its error unwind.
Provide a uverbs_finalize_uobj_create() function which indicates that the
uobject is fully initialized and that abort should call to destroy_hw to
destroy the uobj->object and related.
Methods can call this function if they go on to have error cases after
setting uobj->object. Once done those error cases can simply do return,
without an error unwind.
Link: https://lore.kernel.org/r/20200519072711.257271-2-leon@kernel.org
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'include/rdma/ib_verbs.h')
| -rw-r--r-- | include/rdma/ib_verbs.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index 641f4751b062..c988e9205cf9 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -1491,6 +1491,11 @@ enum rdma_remove_reason { RDMA_REMOVE_DRIVER_REMOVE, /* uobj is being cleaned-up before being committed */ RDMA_REMOVE_ABORT, + /* + * uobj has been fully created, with the uobj->object set, but is being + * cleaned up before being comitted + */ + RDMA_REMOVE_ABORT_HWOBJ, }; struct ib_rdmacg_object { |