tree 749380e841f6a07ffd5d9678fb88f008afd7f2ba
parent 6b5e7d9ef793c55d72679f058514f33c4258f286
author Stefano Stabellini <stefano.stabellini@eu.citrix.com> 1333472747 +0100
committer Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> 1334683637 -0400

xen/gntdev: do not set VM_PFNMAP

Since we are using the m2p_override we do have struct pages
corresponding to the user vma mmap'ed by gntdev.

Removing the VM_PFNMAP flag makes get_user_pages work on that vma.
An example test case would be using a Xen userspace block backend
(QDISK) on a file on NFS using O_DIRECT.

CC: stable@kernel.org
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>