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[SPARC]: Respect vm_page_prot in io_remap_page_range(). 

Make sure the callers do a pgprot_noncached() on
    vma->vm_page_prot.

    Pointed out by Hugh Dickens.

Signed-off-by: David S. Miller <davem@davemloft.net>
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Dave Airlie 2006-12-19 18:27:20 +11:00 committed by Dave Airlie
parent 0ab48b0841
commit 656c3a3737
1 changed files with 1 additions and 0 deletions
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1
linux-core/drm_vm.c
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@ -829,6 +829,7 @@ int drm_mmap(struct file *filp, struct vm_area_struct *vma)
vma->vm_flags |= VM_IO; /* not in core dump */ vma->vm_flags |= VM_IO; /* not in core dump */
vma->vm_page_prot = drm_io_prot(map->type, vma); vma->vm_page_prot = drm_io_prot(map->type, vma);
#ifdef __sparc__ #ifdef __sparc__
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
if (io_remap_pfn_range(vma, vma->vm_start, if (io_remap_pfn_range(vma, vma->vm_start,
(map->offset + offset) >>PAGE_SHIFT, (map->offset + offset) >>PAGE_SHIFT,
vma->vm_end - vma->vm_start, vma->vm_end - vma->vm_start,