diff options
| author | Yishai Hadas <yishaih@mellanox.com> | 2014-01-28 13:40:15 +0200 |
|---|---|---|
| committer | Roland Dreier <roland@purestorage.com> | 2014-03-04 10:34:28 -0800 |
| commit | eeb8461e36c99fdf2d058751be924a2aab215005 (patch) | |
| tree | c92498349f842be5985194c840e2dd12201df861 /include/rdma/ib_umem.h | |
| parent | cfbf8d4857c26a8a307fb7cd258074c9dcd8c691 (diff) | |
| download | lwn-eeb8461e36c99fdf2d058751be924a2aab215005.tar.gz lwn-eeb8461e36c99fdf2d058751be924a2aab215005.zip | |
IB: Refactor umem to use linear SG table
This patch refactors the IB core umem code and vendor drivers to use a
linear (chained) SG table instead of chunk list. With this change the
relevant code becomes clearer—no need for nested loops to build and
use umem.
Signed-off-by: Shachar Raindel <raindel@mellanox.com>
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'include/rdma/ib_umem.h')
| -rw-r--r-- | include/rdma/ib_umem.h | 11 |
1 files changed, 3 insertions, 8 deletions
diff --git a/include/rdma/ib_umem.h b/include/rdma/ib_umem.h index 9ee0d2e51b16..1ea0b65c4cfb 100644 --- a/include/rdma/ib_umem.h +++ b/include/rdma/ib_umem.h @@ -46,17 +46,12 @@ struct ib_umem { int page_size; int writable; int hugetlb; - struct list_head chunk_list; struct work_struct work; struct mm_struct *mm; unsigned long diff; -}; - -struct ib_umem_chunk { - struct list_head list; - int nents; - int nmap; - struct scatterlist page_list[0]; + struct sg_table sg_head; + int nmap; + int npages; }; #ifdef CONFIG_INFINIBAND_USER_MEM |