[PATCH 5.18 51/88] Documentation: fix sctp_wmem in ip-sysctl.rst

Greg Kroah-Hartman
2022-08-01T12:15:00Z

From: Xin Long <lucien.xin@gmail.com>

[ Upstream commit aa709da0e032cee7c202047ecd75f437bb0126ed ]

Since commit 1033990ac5b2 ("sctp: implement memory accounting on tx path"),
SCTP has supported memory accounting on tx path where 'sctp_wmem' is used
by sk_wmem_schedule(). So we should fix the description for this option in
ip-sysctl.rst accordingly.

v1->v2:
- Improve the description as Marcelo suggested.

Fixes: 1033990ac5b2 ("sctp: implement memory accounting on tx path")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
Documentation/networking/ip-sysctl.rst | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/Documentation/networking/ip-sysctl.rst b/Documentation/networking/ip-sysctl.rst
index 8899b474edbf..e29017d4d7a2 100644
--- a/Documentation/networking/ip-sysctl.rst
+++ b/Documentation/networking/ip-sysctl.rst
@@ -2848,7 +2848,14 @@ sctp_rmem - vector of 3 INTEGERs: min, default, max
Default: 4K

sctp_wmem - vector of 3 INTEGERs: min, default, max
- Currently this tunable has no effect.
+ Only the first value ("min") is used, "default" and "max" are
+ ignored.
+
+ min: Minimum size of send buffer that can be used by SCTP sockets.
+ It is guaranteed to each SCTP socket (but not association) even
+ under moderate memory pressure.
+
+ Default: 4K

addr_scope_policy - INTEGER
Control IPv4 address scoping - draft-stewart-tsvwg-sctp-ipv4-00
--
2.35.1