Documentation/network: reword kernel version reference

It seemed odd to say "since 4.17" in a 4.4 kernel. Consider
rewording the reference to indicate where in the stable series
it was introduced as well as where it originated.

Signed-off-by: Mark Rustad <mrustad@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index 7c229f59016f263ab8cea8e0d10f04a57cb3b4a9..2fb35658d151529113c9289deb1237e9f9169dd0 100644 (file)
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -116,7 +116,7 @@ ipfrag_high_thresh - LONG INTEGER
        Maximum memory used to reassemble IP fragments.
 
 ipfrag_low_thresh - LONG INTEGER
-       (Obsolete since linux-4.17)
+       (Obsolete since linux-4.4.174, backported from linux-4.17)
        Maximum memory used to reassemble IP fragments before the kernel
        begins to remove incomplete fragment queues to free up resources.
        The kernel still accepts new fragments for defragmentation.