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Subject[PATCH 5/5 -mm] fault-injection: defaults likely to please a new user
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Date
Assign defaults most likely to please a new user:
1) generate some logging output
(verbose=2)
2) avoid injecting failures likely to lock up UI
(ignore_gfp_wait=1, ignore_gfp_highmem=1)

Signed-off-by: Don Mullis <dwm@meer.net>
Cc: Akinobu Mita <akinobu.mita@gmail.com>
---
include/linux/fault-inject.h | 1 +
mm/page_alloc.c | 2 ++
mm/slab.c | 1 +
3 files changed, 4 insertions(+)

Index: linux-2.6.18/include/linux/fault-inject.h
===================================================================
--- linux-2.6.18.orig/include/linux/fault-inject.h
+++ linux-2.6.18/include/linux/fault-inject.h
@@ -52,6 +52,7 @@ struct fault_attr {
.times = ATOMIC_INIT(1), \
.require_end = ULONG_MAX, \
.stacktrace_depth = 32, \
+ .verbose = 2, \
}

#define DECLARE_FAULT_ATTR(name) struct fault_attr name = FAULT_ATTR_INITIALIZER
Index: linux-2.6.18/mm/page_alloc.c
===================================================================
--- linux-2.6.18.orig/mm/page_alloc.c
+++ linux-2.6.18/mm/page_alloc.c
@@ -914,6 +914,8 @@ static struct fail_page_alloc_attr {

} fail_page_alloc = {
.attr = FAULT_ATTR_INITIALIZER,
+ .ignore_gfp_wait = 1,
+ .ignore_gfp_highmem = 1,
};

static int __init setup_fail_page_alloc(char *str)
Index: linux-2.6.18/mm/slab.c
===================================================================
--- linux-2.6.18.orig/mm/slab.c
+++ linux-2.6.18/mm/slab.c
@@ -3108,6 +3108,7 @@ static struct failslab_attr {

} failslab = {
.attr = FAULT_ATTR_INITIALIZER,
+ .ignore_gfp_wait = 1,
};

static int __init setup_failslab(char *str)

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