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| author |   Jason Gunthorpe <jgg@nvidia.com> | 2021-08-30 09:49:59 -0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2021-08-30 09:49:59 -0300 |
| commit | 6a217437f9f5482a3f6f2dc5fcd27cf0f62409ac (patch) | |
| tree | c82270181daeb43eb9984b586784b70f13ef1df4 /include/linux/mm.h | |
| parent | RDMA/mlx5: Relax DCS QP creation checks (diff) | |
| parent | RDMA: Use the sg_table directly and remove the opencoded version from umem (diff) | |
| download | linux-dev-6a217437f9f5482a3f6f2dc5fcd27cf0f62409ac.tar.xz linux-dev-6a217437f9f5482a3f6f2dc5fcd27cf0f62409ac.zip | |
Merge branch 'sg_nents' into rdma.git for-next
From Maor Gottlieb
====================
Fix the use of nents and orig_nents in the sg table append helpers. The
nents should be used by the DMA layer to store the number of DMA mapped
sges, the orig_nents is the number of CPU sges.
Since the sg append logic doesn't always create a SGL with exactly
orig_nents entries store a total_nents as well to allow the table to be
properly free'd and reorganize the freeing logic to share across all the
use cases.
====================
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
* 'sg_nents':
RDMA: Use the sg_table directly and remove the opencoded version from umem
lib/scatterlist: Fix wrong update of orig_nents
lib/scatterlist: Provide a dedicated function to support table append
Diffstat (limited to 'include/linux/mm.h')
| -rw-r--r-- | include/linux/mm.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h index 57453dba41b9..7ca22e6e694a 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -906,6 +906,7 @@ void __put_page(struct page *page); void put_pages_list(struct list_head *pages); void split_page(struct page *page, unsigned int order); +void copy_huge_page(struct page *dst, struct page *src); /* * Compound pages have a destructor function. Provide a |