diff options
Diffstat (limited to 'include/rdma/ib_umem.h')
| -rw-r--r-- | include/rdma/ib_umem.h | 19 |
1 files changed, 4 insertions, 15 deletions
diff --git a/include/rdma/ib_umem.h b/include/rdma/ib_umem.h index 040d853077c6..1052d0d62be7 100644 --- a/include/rdma/ib_umem.h +++ b/include/rdma/ib_umem.h @@ -46,7 +46,6 @@ struct ib_umem { struct mm_struct *owning_mm; size_t length; unsigned long address; - int page_shift; u32 writable : 1; u32 is_odp : 1; struct work_struct work; @@ -58,24 +57,14 @@ struct ib_umem { /* Returns the offset of the umem start relative to the first page. */ static inline int ib_umem_offset(struct ib_umem *umem) { - return umem->address & (BIT(umem->page_shift) - 1); -} - -/* Returns the first page of an ODP umem. */ -static inline unsigned long ib_umem_start(struct ib_umem *umem) -{ - return umem->address - ib_umem_offset(umem); -} - -/* Returns the address of the page after the last one of an ODP umem. */ -static inline unsigned long ib_umem_end(struct ib_umem *umem) -{ - return ALIGN(umem->address + umem->length, BIT(umem->page_shift)); + return umem->address & ~PAGE_MASK; } static inline size_t ib_umem_num_pages(struct ib_umem *umem) { - return (ib_umem_end(umem) - ib_umem_start(umem)) >> umem->page_shift; + return (ALIGN(umem->address + umem->length, PAGE_SIZE) - + ALIGN_DOWN(umem->address, PAGE_SIZE)) >> + PAGE_SHIFT; } #ifdef CONFIG_INFINIBAND_USER_MEM |