From 403cd12e2cf759ead5cbdcb62bf9872b9618d400 Mon Sep 17 00:00:00 2001 From: Artemy Kovalyov Date: Wed, 5 Apr 2017 09:23:55 +0300 Subject: IB/umem: Add contiguous ODP support Currenlty ODP supports only regular MMU pages. Add ODP support for regions consisting of physically contiguous chunks of arbitrary order (huge pages for instance) to improve performance. Signed-off-by: Artemy Kovalyov Signed-off-by: Leon Romanovsky Signed-off-by: Doug Ledford --- include/rdma/ib_umem.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include/rdma/ib_umem.h') diff --git a/include/rdma/ib_umem.h b/include/rdma/ib_umem.h index 7f4af1e1ae64..23159dd5be18 100644 --- a/include/rdma/ib_umem.h +++ b/include/rdma/ib_umem.h @@ -72,12 +72,12 @@ static inline unsigned long ib_umem_start(struct ib_umem *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 PAGE_ALIGN(umem->address + umem->length); + return ALIGN(umem->address + umem->length, BIT(umem->page_shift)); } static inline size_t ib_umem_num_pages(struct ib_umem *umem) { - return (ib_umem_end(umem) - ib_umem_start(umem)) >> PAGE_SHIFT; + return (ib_umem_end(umem) - ib_umem_start(umem)) >> umem->page_shift; } #ifdef CONFIG_INFINIBAND_USER_MEM -- cgit v1.2.3