uml: only flush areas covered by VMA
authorJeff Dike <jdike@addtoit.com>
Sun, 6 May 2007 21:51:49 +0000 (14:51 -0700)
committerLinus Torvalds <torvalds@woody.linux-foundation.org>
Mon, 7 May 2007 19:13:04 +0000 (12:13 -0700)
When doing a full address space flush, only look at areas covered by a VMA.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
arch/um/kernel/skas/tlb.c

index b3d722d..c0f0693 100644 (file)
@@ -89,8 +89,13 @@ void flush_tlb_mm_skas(struct mm_struct *mm)
 
 void force_flush_all_skas(void)
 {
-       unsigned long end = proc_mm ? task_size : CONFIG_STUB_START;
-        fix_range(current->mm, 0, end, 1);
+       struct mm_struct *mm = current->mm;
+       struct vm_area_struct *vma = mm->mmap;
+
+       while(vma != NULL) {
+               fix_range(mm, vma->vm_start, vma->vm_end, 1);
+               vma = vma->vm_next;
+       }
 }
 
 void flush_tlb_page_skas(struct vm_area_struct *vma, unsigned long address)