From: Per Forlin per.forlin@linaro.org
Add description on how to enable random fault injection for MMC IO
Signed-off-by: Per Forlin per.forlin@linaro.org Acked-by: Akinobu Mita akinobu.mita@gmail.com --- 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 -----------------------------------------