diff options
| author |   Haggai Eran <haggaie@mellanox.com> | 2014-12-11 17:04:12 +0200 |
|---|---|---|
| committer |   Roland Dreier <roland@purestorage.com> | 2014-12-15 18:13:35 -0800 |
| commit | 406f9e5fa9a7a60b42e676841e39f2d752266814 (patch) | |
| tree | ea6b1776793ed0ae3079d9860132a9e062801b18 /drivers/infiniband/core | |
| parent | IB/mlx5: Enhance UMR support to allow partial page table update (diff) | |
| download | linux-dev-406f9e5fa9a7a60b42e676841e39f2d752266814.tar.xz linux-dev-406f9e5fa9a7a60b42e676841e39f2d752266814.zip | |
IB/core: Replace ib_umem's offset field with a full address
In order to allow umems that do not pin memory, we need the umem to
keep track of its region's address.
This makes the offset field redundant, and so this patch removes it.
Signed-off-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/infiniband/core')
| -rw-r--r-- | drivers/infiniband/core/umem.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/infiniband/core/umem.c b/drivers/infiniband/core/umem.c index df0c4f605a21..e0f883292374 100644 --- a/drivers/infiniband/core/umem.c +++ b/drivers/infiniband/core/umem.c @@ -103,7 +103,7 @@ struct ib_umem *ib_umem_get(struct ib_ucontext *context, unsigned long addr, umem->context = context; umem->length = size; - umem->offset = addr & ~PAGE_MASK; + umem->address = addr; umem->page_size = PAGE_SIZE; umem->pid = get_task_pid(current, PIDTYPE_PID); /* @@ -132,7 +132,7 @@ struct ib_umem *ib_umem_get(struct ib_ucontext *context, unsigned long addr, if (!vma_list) umem->hugetlb = 0; - npages = PAGE_ALIGN(size + umem->offset) >> PAGE_SHIFT; + npages = ib_umem_num_pages(umem); down_write(¤t->mm->mmap_sem); @@ -246,7 +246,7 @@ void ib_umem_release(struct ib_umem *umem) if (!mm) goto out; - diff = PAGE_ALIGN(umem->length + umem->offset) >> PAGE_SHIFT; + diff = ib_umem_num_pages(umem); /* * We may be called with the mm's mmap_sem already held. This |