NOMMU: Don't check vm_region::vm_start is page aligned in add_nommu_region()
authorDavid Howells <dhowells@redhat.com>
Thu, 7 May 2009 10:41:37 +0000 (11:41 +0100)
committerLinus Torvalds <torvalds@linux-foundation.org>
Thu, 7 May 2009 19:03:41 +0000 (12:03 -0700)
Don't check vm_region::vm_start is page aligned in add_nommu_region() because
the region may reflect some non-page-aligned mapped file, such as could be
obtained from RomFS XIP.

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mm/nommu.c

index 67cd1a487ee63ee11ca0f372c0f76c6f1f61fcc7..b571ef707428c5e171fa27b7fc09d0212018c5df 100644 (file)
@@ -515,8 +515,6 @@ static void add_nommu_region(struct vm_region *region)
 
        validate_nommu_regions();
 
-       BUG_ON(region->vm_start & ~PAGE_MASK);
-
        parent = NULL;
        p = &nommu_region_tree.rb_node;
        while (*p) {