On Fri, Dec 30, 2016 at 06:18:29PM +0800, Kenneth Lee wrote:
> There are two bugfixes in this patch:
>
> Fixes: 87773dd56d54 ("IB: ib_umem_release() should decrement mm->pinned_vm
> from ib_umem_get")
> This patch introduce the get_task_pid but not put it back on all error
> path
>
> Fixes: 8ada2c1c0c1d ("IB/core: Add support for on demand paging regions")
> This patch introduce a ODP flow without release pid before enter it
>
>
> Signed-off-by: Kenneth Lee <liguo...@hisilicon.com>
> Reviewed-by: Haggai Eran <hagg...@mellanox.com>
> ---
> Change from v1 to v2:
> Correcting the patch title and description
> Change from v2 to v3:
> Update the title and add "Fixes" fields in the description
OK,
I see that you still didn't read Documentation/SubmittingPatches. You
must read that document before you are sending patches.
But I'll stop here, the code is correct (it fixes bugs) and commit message
more usefull than before.
>
> drivers/infiniband/core/umem.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/infiniband/core/umem.c b/drivers/infiniband/core/umem.c
> index 1e62a5f..4609b92 100644
> --- a/drivers/infiniband/core/umem.c
> +++ b/drivers/infiniband/core/umem.c
> @@ -134,6 +134,7 @@ struct ib_umem *ib_umem_get(struct ib_ucontext *context,
> unsigned long addr,
> IB_ACCESS_REMOTE_ATOMIC | IB_ACCESS_MW_BIND));
>
> if (access & IB_ACCESS_ON_DEMAND) {
> + put_pid(umem->pid);
> ret = ib_umem_odp_get(context, umem);
> if (ret) {
> kfree(umem);
> @@ -149,6 +150,7 @@ struct ib_umem *ib_umem_get(struct ib_ucontext *context,
> unsigned long addr,
>
> page_list = (struct page **) __get_free_page(GFP_KERNEL);
> if (!page_list) {
> + put_pid(umem->pid);
> kfree(umem);
> return ERR_PTR(-ENOMEM);
> }
> --
> 1.9.1
>
> --
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