NOMMU: Don't check vm_region::vm_start is page aligned in add_nommu_region()

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>

NOMMU: Don't check vm_region::vm_start is page aligned in add_nommu_region()
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>
David Howells · Linus Torvalds
1 parent ee7fee0b91
Showing 1 changed file with 0 additions and 2 deletions Side-by-side Diff
mm/nommu.c
@@ -515,8 +515,6 @@
  
 	validate_nommu_regions();
  
-	BUG_ON(region->vm_start & ~PAGE_MASK);
-
 	parent = NULL;
 	p = &nommu_region_tree.rb_node;
 	while (*p) {
...	...	@@ -515,8 +515,6 @@
515	515
516	516	validate_nommu_regions();
517	517
518		- BUG_ON(region->vm_start & ~PAGE_MASK);
519		-
520	518	parent = NULL;
521	519	p = &nommu_region_tree.rb_node;
522	520	while (*p) {