Merge tag 'powerpc-6.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc...

[linux-block.git] / Documentation / fault-injection / fault-injection.rst

diff --git a/Documentation/fault-injection/fault-injection.rst b/Documentation/fault-injection/fault-injection.rst
index 08e420e109739f38a5daeffff6e3aeb64a1043fd..b64809514b0f784a0d30a0ef81d723bc6b3c11b8 100644 (file)
--- a/Documentation/fault-injection/fault-injection.rst
+++ b/Documentation/fault-injection/fault-injection.rst
@@ -52,6 +52,14 @@ Available fault injection capabilities
   status code is NVME_SC_INVALID_OPCODE with no retry. The status code and
   retry flag can be set via the debugfs.
 
+- Null test block driver fault injection
+
+  inject IO timeouts by setting config items under
+  /sys/kernel/config/nullb/<disk>/timeout_inject,
+  inject requeue requests by setting config items under
+  /sys/kernel/config/nullb/<disk>/requeue_inject, and
+  inject init_hctx() errors by setting config items under
+  /sys/kernel/config/nullb/<disk>/init_hctx_fault_inject.
 
 Configure fault-injection capabilities behavior
 -----------------------------------------------