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(parent: 6b5e7d9) | patch
xen/gntdev: do not set VM_PFNMAP
authorStefano Stabellini <stefano.stabellini@eu.citrix.com>
Tue, 3 Apr 2012 17:05:47 +0000 (18:05 +0100)
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Tue, 17 Apr 2012 17:27:17 +0000 (13:27 -0400)
commite8e937be971d706061dc56220ff3605ab77622a7
tree749380e841f6a07ffd5d9678fb88f008afd7f2batree | snapshot
parent6b5e7d9ef793c55d72679f058514f33c4258f286commit | diff
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>
drivers/xen/gntdev.c diff | blob | history
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