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authorJason Gunthorpe <jgg@mellanox.com>2019-08-19 14:17:03 +0300
committerJason Gunthorpe <jgg@mellanox.com>2019-08-21 20:08:42 +0300
commitf20bef6a951b6ef619655ed846113f706d0824d7 (patch)
tree5a00fa66ad14cb5d3527f20ce91f7e87963ea2f8 /include/rdma
parent22d79c9a912c9d56258a0adf8a9c8cbfb6f2fd1a (diff)
downloadlinux-f20bef6a951b6ef619655ed846113f706d0824d7.tar.xz
RDMA/odp: Make the three ways to create a umem_odp clear
The three paths to build the umem_odps are kind of muddled, they are: - As a normal ib_mr umem - As a child in an implicit ODP umem tree - As the root of an implicit ODP umem tree Only the first two are actually umem's, the last is an abuse. The implicit case can only be triggered by explicit driver request, it should never be co-mingled with the normal case. While we are here, make sensible function names and add some comments to make this clearer. Link: https://lore.kernel.org/r/20190819111710.18440-6-leon@kernel.org Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'include/rdma')
-rw-r--r--include/rdma/ib_umem_odp.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/include/rdma/ib_umem_odp.h b/include/rdma/ib_umem_odp.h
index 14b38b4459c5..219fe7015e7d 100644
--- a/include/rdma/ib_umem_odp.h
+++ b/include/rdma/ib_umem_odp.h
@@ -140,8 +140,10 @@ struct ib_ucontext_per_mm {
};
int ib_umem_odp_get(struct ib_umem_odp *umem_odp, int access);
-struct ib_umem_odp *ib_alloc_odp_umem(struct ib_umem_odp *root_umem,
- unsigned long addr, size_t size);
+struct ib_umem_odp *ib_umem_odp_alloc_implicit(struct ib_udata *udata,
+ int access);
+struct ib_umem_odp *ib_umem_odp_alloc_child(struct ib_umem_odp *root_umem,
+ unsigned long addr, size_t size);
void ib_umem_odp_release(struct ib_umem_odp *umem_odp);
int ib_umem_odp_map_dma_pages(struct ib_umem_odp *umem_odp, u64 start_offset,