Re: [PATCH] RDMA/umem: updated bug fix in error handling path

[Jason Gunthorpe]

On Tue, Mar 05, 2019 at 06:00:22PM -0800, john.hubbard@xxxxxxxxx wrote:
> From: John Hubbard <jhubbard@xxxxxxxxxx>
> 
> The previous attempted bug fix overlooked the fact that
> ib_umem_odp_map_dma_single_page() was doing a put_page()
> upon hitting an error. So there was not really a bug there.
> 
> Therefore, this reverts the off-by-one change, but
> keeps the change to use release_pages() in the error path.
> 
> Fixes: commit xxxxxxxxxxxx ("RDMA/umem: minor bug fix in error handling path")
> Suggested-by: Artemy Kovalyov <artemyko@xxxxxxxxxxxx>
> 
> Cc: Leon Romanovsky <leon@xxxxxxxxxx>
> Cc: Ira Weiny <ira.weiny@xxxxxxxxx>
> Cc: Jason Gunthorpe <jgg@xxxxxxxx>
> Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
> Cc: Doug Ledford <dledford@xxxxxxxxxx>
> Cc: linux-rdma@xxxxxxxxxxxxxxx
> Cc: linux-mm@xxxxxxxxx
> Signed-off-by: John Hubbard <jhubbard@xxxxxxxxxx>
> ---
>  drivers/infiniband/core/umem_odp.c | 9 ++++++---
>  1 file changed, 6 insertions(+), 3 deletions(-)

Applied to for-next, thanks

Jason