The patch titled
mm-nommuc-fix-remap_pfn_range-update
has been added to the -mm tree. Its filename is
mm-nommuc-fix-remap_pfn_range-update.patch
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------------------------------------------------------
Subject: mm-nommuc-fix-remap_pfn_range-update
From: Bob Liu <lliubbo@xxxxxxxxx>
Cc: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
Cc: David Howells <dhowells@xxxxxxxxxx>
Cc: Greg Ungerer <gerg@xxxxxxxxxxx>
Cc: Mike Frysinger <vapier@xxxxxxxxxx>
Cc: Bob Liu <lliubbo@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/nommu.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff -puN mm/nommu.c~mm-nommuc-fix-remap_pfn_range-update mm/nommu.c
--- a/mm/nommu.c~mm-nommuc-fix-remap_pfn_range-update
+++ a/mm/nommu.c
@@ -1813,11 +1813,13 @@ struct page *follow_page(struct vm_area_
return NULL;
}
-int remap_pfn_range(struct vm_area_struct *vma, unsigned long from,
- unsigned long to, unsigned long size, pgprot_t prot)
+int remap_pfn_range(struct vm_area_struct *vma, unsigned long addr,
+ unsigned long pfn, unsigned long size, pgprot_t prot)
{
- vma->vm_start = vma->vm_pgoff << PAGE_SHIFT;
- vma->vm_end = vma->vm_start + size;
+ if (addr != (pfn << PAGE_SHIFT))
+ return -EINVAL;
+
+ vma->vm_flags |= VM_IO | VM_RESERVED | VM_PFNMAP;
return 0;
}
EXPORT_SYMBOL(remap_pfn_range);
_
Patches currently in -mm which might be from lliubbo@xxxxxxxxx are
mm-nommuc-fix-remap_pfn_range.patch
mm-nommuc-fix-remap_pfn_range-update.patch
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