diff options
author | Stefano Stabellini <stefano.stabellini@eu.citrix.com> | 2010-11-11 15:37:43 -0500 |
---|---|---|
committer | Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> | 2010-11-11 15:37:43 -0500 |
commit | e060e7af98182494b764d002eba7fa022fe91bdf (patch) | |
tree | 556b1a8c0d5cddf245c18bf220259691fb8f31d3 /drivers/xen/xenfs/privcmd.c | |
parent | 313e74412105c670ff8900ec8099a3a5df1fa83c (diff) |
xen: set vma flag VM_PFNMAP in the privcmd mmap file_op
Set VM_PFNMAP in the privcmd mmap file_op, rather than later in
xen_remap_domain_mfn_range when it is too late because
vma_wants_writenotify has already been called and vm_page_prot has
already been modified.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Diffstat (limited to 'drivers/xen/xenfs/privcmd.c')
-rw-r--r-- | drivers/xen/xenfs/privcmd.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/xen/xenfs/privcmd.c b/drivers/xen/xenfs/privcmd.c index 2eb04c842511..88474d460d82 100644 --- a/drivers/xen/xenfs/privcmd.c +++ b/drivers/xen/xenfs/privcmd.c | |||
@@ -380,8 +380,9 @@ static int privcmd_mmap(struct file *file, struct vm_area_struct *vma) | |||
380 | if (xen_feature(XENFEAT_auto_translated_physmap)) | 380 | if (xen_feature(XENFEAT_auto_translated_physmap)) |
381 | return -ENOSYS; | 381 | return -ENOSYS; |
382 | 382 | ||
383 | /* DONTCOPY is essential for Xen as copy_page_range is broken. */ | 383 | /* DONTCOPY is essential for Xen because copy_page_range doesn't know |
384 | vma->vm_flags |= VM_RESERVED | VM_IO | VM_DONTCOPY; | 384 | * how to recreate these mappings */ |
385 | vma->vm_flags |= VM_RESERVED | VM_IO | VM_DONTCOPY | VM_PFNMAP; | ||
385 | vma->vm_ops = &privcmd_vm_ops; | 386 | vma->vm_ops = &privcmd_vm_ops; |
386 | vma->vm_private_data = NULL; | 387 | vma->vm_private_data = NULL; |
387 | 388 | ||