diff options
| author | Ingo Molnar <mingo@kernel.org> | 2016-11-13 08:16:40 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-11-13 08:16:40 +0100 |
| commit | 74239ac259519a98f4c32439326afe7e7eb64459 (patch) | |
| tree | a3e9a1ae0dc6634e7aa669c8881e425634094257 /drivers/infiniband/core/umem_odp.c | |
| parent | a75dcb5848359f488c32c0aef8711d9bd37a77b8 (diff) | |
| parent | 86e4ee760ef2f7571e233a3abf065ffd0bb4089d (diff) | |
| download | linux-74239ac259519a98f4c32439326afe7e7eb64459.tar.gz | |
Merge branch 'linus' into efi/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/infiniband/core/umem_odp.c')
| -rw-r--r-- | drivers/infiniband/core/umem_odp.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/infiniband/core/umem_odp.c b/drivers/infiniband/core/umem_odp.c index 75077a018675..1f0fe3217f23 100644 --- a/drivers/infiniband/core/umem_odp.c +++ b/drivers/infiniband/core/umem_odp.c @@ -527,6 +527,7 @@ int ib_umem_odp_map_dma_pages(struct ib_umem *umem, u64 user_virt, u64 bcnt, u64 off; int j, k, ret = 0, start_idx, npages = 0; u64 base_virt_addr; + unsigned int flags = 0; if (access_mask == 0) return -EINVAL; @@ -556,6 +557,9 @@ int ib_umem_odp_map_dma_pages(struct ib_umem *umem, u64 user_virt, u64 bcnt, goto out_put_task; } + if (access_mask & ODP_WRITE_ALLOWED_BIT) + flags |= FOLL_WRITE; + start_idx = (user_virt - ib_umem_start(umem)) >> PAGE_SHIFT; k = start_idx; @@ -574,8 +578,7 @@ int ib_umem_odp_map_dma_pages(struct ib_umem *umem, u64 user_virt, u64 bcnt, */ npages = get_user_pages_remote(owning_process, owning_mm, user_virt, gup_num_pages, - access_mask & ODP_WRITE_ALLOWED_BIT, - 0, local_page_list, NULL); + flags, local_page_list, NULL); up_read(&owning_mm->mmap_sem); if (npages < 0) |