On Tue, Aug 16, 2022 at 11:03:20AM -0300, Jason Gunthorpe wrote:
> ib_umem_dmabuf_map_pages() returns 0 on success and -ERRNO on failure.
>
> dma_resv_wait_timeout() uses a different scheme:
>
> * Returns -ERESTARTSYS if interrupted, 0 if the wait timed out, or
> * greater than zero on success.
>
> This results in ib_umem_dmabuf_map_pages() being non-functional as a
> positive return will be understood to be an error by drivers.
>
> Fixes: f30bceab16d1 ("RDMA: use dma_resv_wait() instead of extracting the fence")
> Cc: stable@xxxxxxxxxx
> Tested-by: Maor Gottlieb <maorg@xxxxxxxxxx>
> Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxx>
> ---
> drivers/infiniband/core/umem_dmabuf.c | 8 +++++++-
> 1 file changed, 7 insertions(+), 1 deletion(-)
>
Thanks, applied to -rc.
