From 54114994f4de7e8076fc250e44501e55e19b75b5 Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Sun, 15 Jul 2007 23:40:23 -0700 Subject: fault-injection: add min-order parameter to fail_page_alloc Limiting smaller allocation failures by fault injection helps to find real possible bugs. Because higher order allocations are likely to fail and zero-order allocations are not likely to fail. This patch adds min-order parameter to fail_page_alloc. It specifies the minimum page allocation order to be injected failures. Signed-off-by: Akinobu Mita Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/fault-injection/fault-injection.txt | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'Documentation/fault-injection') diff --git a/Documentation/fault-injection/fault-injection.txt b/Documentation/fault-injection/fault-injection.txt index b7ca560b934..36ece095ff1 100644 --- a/Documentation/fault-injection/fault-injection.txt +++ b/Documentation/fault-injection/fault-injection.txt @@ -103,6 +103,11 @@ configuration of fault-injection capabilities. default is 'N', setting it to 'Y' will inject failures only into non-sleep allocations (GFP_ATOMIC allocations). +- /debug/fail_page_alloc/min-order: + + specifies the minimum page allocation order to be injected + failures. + o Boot option In order to inject faults while debugfs is not available (early boot time), -- cgit v1.2.3