detect_time_jump nitpick doc: note the Linux 4.17 change

diff --git a/modules/detect_time_jump/detect_time_jump.lua b/modules/detect_time_jump/detect_time_jump.lua
index 68bedb3c71642f7e227bf00f371d00705d61aef0..65ae06075429a5d98cdffa521306fe127a4f2fcf 100644 (file)
--- a/modules/detect_time_jump/detect_time_jump.lua
+++ b/modules/detect_time_jump/detect_time_jump.lua
@@ -20,6 +20,7 @@ local function check_time()
                )
                cache.clear()
        elseif -jump_backward > mod.threshold then
+               -- On Linux 4.17+ this shouldn't happen anymore: https://lwn.net/Articles/751482/
                log("Detected forward time jump.  (Suspend-resume, possibly.)")
                cache.checkpoint(true)
        end