---

yaml --- r: 344778 b: refs/heads/master c: 1233d58 h: refs/heads/master v: v3
git-mirror · Dec 11, 2012 · 39e53ce · 39e53ce
1 parent 3475dbd
commit 39e53ce
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Showing 2 changed files with 4 additions and 2 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 7da4d641c58d201c3cc1835c05ca1a7fa26f0856
+refs/heads/master: 1233d588210737ed3696b44c26e71dfa44a6995a
diff --git a/trunk/mm/mprotect.c b/trunk/mm/mprotect.c
@@ -153,7 +153,9 @@ static unsigned long change_protection_range(struct vm_area_struct *vma,
 				 dirty_accountable);
 	} while (pgd++, addr = next, addr != end);
 
-	flush_tlb_range(vma, start, end);
+	/* Only flush the TLB if we actually modified any entries: */
+	if (pages)
+		flush_tlb_range(vma, start, end);
 
 	return pages;
 }