On 8/30/22 14:49, Suren Baghdasaryan wrote:

From: Kent Overstreet <kent.overstreet@linux.dev>

This adds a new fault injection capability, based on code tagging.

To use, simply insert somewhere in your code

  dynamic_fault("fault_class_name")

and check whether it returns true - if so, inject the error.
For example

  if (dynamic_fault("init"))
      return -EINVAL;

There's no need to define faults elsewhere, as with
include/linux/fault-injection.h. Faults show up in debugfs, under
/sys/kernel/debug/dynamic_faults, and can be selected based on
file/module/function/line number/class, and enabled permanently, or in
oneshot mode, or with a specified frequency.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

Missing Signed-off-by: from Suren.
See Documentation/process/submitting-patches.rst:

When to use Acked-by:, Cc:, and Co-developed-by:
------------------------------------------------

The Signed-off-by: tag indicates that the signer was involved in the
development of the patch, or that he/she was in the patch's delivery path.


-- 
~Randy