HWPOISON: limit hwpoison injector to known page types

[linux-2.6-block.git] / Documentation / vm / hwpoison.txt

diff --git a/Documentation/vm/hwpoison.txt b/Documentation/vm/hwpoison.txt
index fdf580464324de4c7b297280c28a610b7f0e50ef..4ef7bb30d15c86a68b5130fa7b0567a0ac17fd69 100644 (file)
--- a/Documentation/vm/hwpoison.txt
+++ b/Documentation/vm/hwpoison.txt
@@ -103,7 +103,8 @@ hwpoison-inject module through debugfs
 
 corrupt-pfn
 
-Inject hwpoison fault at PFN echoed into this file.
+Inject hwpoison fault at PFN echoed into this file. This does
+some early filtering to avoid corrupted unintended pages in test suites.
 
 unpoison-pfn