[PATCH 1/1] CodingStyle: clarify variable naming rules

[Alexey Dobriyan]

* sysctl stuff better have "sysctl" in its name to remind developers
  to use READ_ONCE() and that their values can change at any time,

* variable holding physical time should append unit of time to the name,
  to make life easier for developers and static checkers.

  Jiffies aren't included because I'd be crucified for "_ji".

Signed-off-by: Alexey Dobriyan <adobriyan@xxxxxxxxx>
---
 Documentation/process/coding-style.rst | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/process/coding-style.rst b/Documentation/process/coding-style.rst
index a8336582f60b..d97ed5be4eab 100644
--- a/Documentation/process/coding-style.rst
+++ b/Documentation/process/coding-style.rst
@@ -356,6 +356,11 @@ specification that mandates those terms. For new specifications
 translate specification usage of the terminology to the kernel coding
 standard where possible.
 
+Variable holding sysctl value should have ``sysctl`` in its name.
+
+Variable measuring time should be suffixed with the unit of time it is measured in:
+``_s`` for seconds, ``_ms`` for milliseconds, ``_us`` for microseconds, ``_ns`` for nanoseconds.
+
 5) Typedefs
 -----------
 
-- 
2.54.0