[PATCH v6 10/21] RDMA/umem: Prepare to dynamic dma-buf locking specification
Jason Gunthorpe
jgg at ziepe.ca
Mon Oct 10 18:56:37 UTC 2022
On Sun, Oct 09, 2022 at 03:08:56AM +0300, Dmitry Osipenko wrote:
> On 9/28/22 22:15, Dmitry Osipenko wrote:
> > Prepare InfiniBand drivers to the common dynamic dma-buf locking
> > convention by starting to use the unlocked versions of dma-buf API
> > functions.
> >
> > Acked-by: Christian König <christian.koenig at amd.com>
> > Signed-off-by: Dmitry Osipenko <dmitry.osipenko at collabora.com>
> > ---
> > drivers/infiniband/core/umem_dmabuf.c | 7 ++++---
> > 1 file changed, 4 insertions(+), 3 deletions(-)
> >
> > diff --git a/drivers/infiniband/core/umem_dmabuf.c b/drivers/infiniband/core/umem_dmabuf.c
> > index 04c04e6d24c3..43b26bc12288 100644
> > --- a/drivers/infiniband/core/umem_dmabuf.c
> > +++ b/drivers/infiniband/core/umem_dmabuf.c
> > @@ -26,7 +26,8 @@ int ib_umem_dmabuf_map_pages(struct ib_umem_dmabuf *umem_dmabuf)
> > if (umem_dmabuf->sgt)
> > goto wait_fence;
> >
> > - sgt = dma_buf_map_attachment(umem_dmabuf->attach, DMA_BIDIRECTIONAL);
> > + sgt = dma_buf_map_attachment_unlocked(umem_dmabuf->attach,
> > + DMA_BIDIRECTIONAL);
> > if (IS_ERR(sgt))
> > return PTR_ERR(sgt);
> >
> > @@ -102,8 +103,8 @@ void ib_umem_dmabuf_unmap_pages(struct ib_umem_dmabuf *umem_dmabuf)
> > umem_dmabuf->last_sg_trim = 0;
> > }
> >
> > - dma_buf_unmap_attachment(umem_dmabuf->attach, umem_dmabuf->sgt,
> > - DMA_BIDIRECTIONAL);
> > + dma_buf_unmap_attachment_unlocked(umem_dmabuf->attach, umem_dmabuf->sgt,
> > + DMA_BIDIRECTIONAL);
> >
> > umem_dmabuf->sgt = NULL;
> > }
>
> Jason / Leon,
>
> Could you please ack this patch?
You probably don't need it, for something so simple, but sure
Acked-by: Jason Gunthorpe <jgg at nvidia.com>
Jason
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