From d8428ba88e900257c0233ffd1579c50b2c875167 Mon Sep 17 00:00:00 2001
From: Jeff Dike <jdike@addtoit.com>
Date: Sun, 6 May 2007 14:51:49 -0700
Subject: [PATCH] uml: only flush areas covered by VMA
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 | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/arch/um/kernel/skas/tlb.c b/arch/um/kernel/skas/tlb.c
index b3d722ddde315..c0f0693743bab 100644
--- a/arch/um/kernel/skas/tlb.c
+++ b/arch/um/kernel/skas/tlb.c
@@ -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)
--
2.39.5