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-rw-r--r--Documentation/fault-injection/fault-injection.rst14
1 files changed, 7 insertions, 7 deletions
diff --git a/Documentation/fault-injection/fault-injection.rst b/Documentation/fault-injection/fault-injection.rst
index 4a25c5eb6f07..eb9c2d9a4f5f 100644
--- a/Documentation/fault-injection/fault-injection.rst
+++ b/Documentation/fault-injection/fault-injection.rst
@@ -132,16 +132,16 @@ configuration of fault-injection capabilities.
Format: { 'Y' | 'N' }
- default is 'N', setting it to 'Y' won't inject failures into
- highmem/user allocations.
+ default is 'Y', setting it to 'N' will also inject failures into
+ highmem/user allocations (__GFP_HIGHMEM allocations).
- /sys/kernel/debug/failslab/ignore-gfp-wait:
- /sys/kernel/debug/fail_page_alloc/ignore-gfp-wait:
Format: { 'Y' | 'N' }
- default is 'N', setting it to 'Y' will inject failures
- only into non-sleep allocations (GFP_ATOMIC allocations).
+ default is 'Y', setting it to 'N' will also inject failures
+ into allocations that can sleep (__GFP_DIRECT_RECLAIM allocations).
- /sys/kernel/debug/fail_page_alloc/min-order:
@@ -280,7 +280,7 @@ Application Examples
printf %#x -1 > /sys/kernel/debug/$FAILTYPE/times
echo 0 > /sys/kernel/debug/$FAILTYPE/space
echo 2 > /sys/kernel/debug/$FAILTYPE/verbose
- echo 1 > /sys/kernel/debug/$FAILTYPE/ignore-gfp-wait
+ echo Y > /sys/kernel/debug/$FAILTYPE/ignore-gfp-wait
faulty_system()
{
@@ -334,8 +334,8 @@ Application Examples
printf %#x -1 > /sys/kernel/debug/$FAILTYPE/times
echo 0 > /sys/kernel/debug/$FAILTYPE/space
echo 2 > /sys/kernel/debug/$FAILTYPE/verbose
- echo 1 > /sys/kernel/debug/$FAILTYPE/ignore-gfp-wait
- echo 1 > /sys/kernel/debug/$FAILTYPE/ignore-gfp-highmem
+ echo Y > /sys/kernel/debug/$FAILTYPE/ignore-gfp-wait
+ echo Y > /sys/kernel/debug/$FAILTYPE/ignore-gfp-highmem
echo 10 > /sys/kernel/debug/$FAILTYPE/stacktrace-depth
trap "echo 0 > /sys/kernel/debug/$FAILTYPE/probability" SIGINT SIGTERM EXIT