[PATCH --mmotm v7 3/3] fault injection: add documentation on MMC IO fault injection

[Per Forlin]

Add description on how to enable random fault injection
for MMC IO

Signed-off-by: Per Forlin <per.forlin@xxxxxxxxxx>
Acked-by: Akinobu Mita <akinobu.mita@xxxxxxxxx>
---
 Documentation/fault-injection/fault-injection.txt |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/Documentation/fault-injection/fault-injection.txt b/Documentation/fault-injection/fault-injection.txt
index 82a5d25..10571df 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
 -----------------------------------------------
 
-- 
1.7.4.1

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