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authorXin Long <lucien.xin@gmail.com>2023-10-01 18:04:20 +0300
committerJakub Kicinski <kuba@kernel.org>2023-10-05 03:29:58 +0300
commit1f4e803cd9c9166eb8b6c8b0b8e4124f7499fc07 (patch)
treeb74d9a3545e465c50dd47390b7dd31705be90056 /net/sctp
parent2222a78075f0c19ca18db53fd6623afb4aff602d (diff)
downloadlinux-1f4e803cd9c9166eb8b6c8b0b8e4124f7499fc07.tar.xz
sctp: update hb timer immediately after users change hb_interval
Currently, when hb_interval is changed by users, it won't take effect until the next expiry of hb timer. As the default value is 30s, users have to wait up to 30s to wait its hb_interval update to work. This becomes pretty bad in containers where a much smaller value is usually set on hb_interval. This patch improves it by resetting the hb timer immediately once the value of hb_interval is updated by users. Note that we don't address the already existing 'problem' when sending a heartbeat 'on demand' if one hb has just been sent(from the timer) mentioned in: https://www.mail-archive.com/linux-kernel@vger.kernel.org/msg590224.html Signed-off-by: Xin Long <lucien.xin@gmail.com> Reviewed-by: Simon Horman <horms@kernel.org> Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Link: https://lore.kernel.org/r/75465785f8ee5df2fb3acdca9b8fafdc18984098.1696172660.git.lucien.xin@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/sctp')
-rw-r--r--net/sctp/socket.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index ab943e8fb1db..7f89e43154c0 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -2450,6 +2450,7 @@ static int sctp_apply_peer_addr_params(struct sctp_paddrparams *params,
if (trans) {
trans->hbinterval =
msecs_to_jiffies(params->spp_hbinterval);
+ sctp_transport_reset_hb_timer(trans);
} else if (asoc) {
asoc->hbinterval =
msecs_to_jiffies(params->spp_hbinterval);