xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

RDMA/umem: Make ib_umem_odp into a sub structure of ib_umem

Browse Source 
These two structures are linked together, use the container_of pattern
instead of a double allocation to make the code simpler and easier to
follow.

Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Jason Gunthorpe
2018-09-16 20:48:05 +03:00
committed by Doug Ledford
parent b5231b019d
commit 41b4deeaa1
4 changed files with 69 additions and 83 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
include/rdma/ib_umem_odp.h
View File

@@ -43,6 +43,7 @@ struct umem_odp_node {
};
struct ib_umem_odp {
struct ib_umem umem;
/*
* An array of the pages included in the on-demand paging umem.
* Indices of pages that are currently not mapped into the device will
@@ -72,7 +73,6 @@ struct ib_umem_odp {
/* A linked list of umems that don't have private mmu notifier
* counters yet. */
struct list_head no_private_counters;
struct ib_umem *umem;
/* Tree tracking */
struct umem_odp_node interval_tree;
@@ -84,13 +84,12 @@ struct ib_umem_odp {
static inline struct ib_umem_odp *to_ib_umem_odp(struct ib_umem *umem)
{
return umem->odp_data;
return container_of(umem, struct ib_umem_odp, umem);
}
#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
int ib_umem_odp_get(struct ib_ucontext *context, struct ib_umem *umem,
int access);
int ib_umem_odp_get(struct ib_umem_odp *umem_odp, int access);
struct ib_umem_odp *ib_alloc_odp_umem(struct ib_ucontext *context,
unsigned long addr, size_t size);
void ib_umem_odp_release(struct ib_umem_odp *umem_odp);
@@ -158,9 +157,7 @@ static inline int ib_umem_mmu_notifier_retry(struct ib_umem_odp *umem_odp,
#else /* CONFIG_INFINIBAND_ON_DEMAND_PAGING */
static inline int ib_umem_odp_get(struct ib_ucontext *context,
struct ib_umem *umem,
int access)
static inline int ib_umem_odp_get(struct ib_umem_odp *umem_odp, int access)
{
return -EINVAL;
}