Add description on how to enable random fault injection
for MMC IO
Signed-off-by: Per Forlin <[email protected]>
Acked-by: Akinobu Mita <[email protected]>
---
Documentation/fault-injection/fault-injection.txt | 8 +++++++-
1 files changed, 7 insertions(+), 1 deletions(-)
diff --git a/Documentation/fault-injection/fault-injection.txt
b/Documentation/fault-injection/fault-injection.txt
index 82a5d25..70f924e 100644
--- a/Documentation/fault-injection/fault-injection.txt
+++ b/Documentation/fault-injection/fault-injection.txt
@@ -21,6 +21,11 @@ o fail_make_request
/sys/block/<device>/make-it-fail or
/sys/block/<device>/<partition>/make-it-fail. (generic_make_request())
+o fail_mmc_request
+
+ injects MMC data errors on devices permitted by setting
+ debugfs entries under /sys/kernel/debug/mmc0/fail_mmc_request
+
Configure fault-injection capabilities behavior
-----------------------------------------------
@@ -115,7 +120,8 @@ use the boot option:
failslab=
fail_page_alloc=
- fail_make_request=<interval>,<probability>,<space>,<times>
+ fail_make_request=
+ fail_mmc_request=<interval>,<probability>,<space>,<times>
How to add new fault injection capability
-----------------------------------------
--
1.7.4.1
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