Re: [PATCH] drivers/vmw_vmci: Show correct get_user_pages_fast upon err

From: Greg Kroah-Hartman
Date: Tue Feb 17 2015 - 17:03:11 EST


On Tue, Feb 17, 2015 at 01:57:34PM -0800, Davidlohr Bueso wrote:
> As of 240ddd495a9 (vmw_vmci: Convert driver to use get_user_pages_fast())
> we no longer call get_user_pages(), thus update the warning.
>
> Signed-off-by: Davidlohr Bueso <dbueso@xxxxxxx>
> ---
> drivers/misc/vmw_vmci/vmci_queue_pair.c | 6 ++++--
> 1 file changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/misc/vmw_vmci/vmci_queue_pair.c b/drivers/misc/vmw_vmci/vmci_queue_pair.c
> index 35f19a6..1d80c56 100644
> --- a/drivers/misc/vmw_vmci/vmci_queue_pair.c
> +++ b/drivers/misc/vmw_vmci/vmci_queue_pair.c
> @@ -737,7 +737,8 @@ static int qp_host_get_user_memory(u64 produce_uva,
> produce_q->kernel_if->num_pages, 1,
> produce_q->kernel_if->u.h.header_page);
> if (retval < produce_q->kernel_if->num_pages) {
> - pr_warn("get_user_pages(produce) failed (retval=%d)", retval);
> + pr_warn("get_user_pages_fast(produce) failed (retval=%d)",
> + retval);

What can a user do with this message? Shouldn't it be a debug message?

thanks,

greg k-h
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