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authorZhu Yanjun <zyjzyj2000@gmail.com>2015-12-16 13:55:04 +0800
committerDavid S. Miller <davem@davemloft.net>2015-12-16 10:56:50 -0500
commit566178f853c1aa57be9c16007c7cca07df5d51b6 (patch)
tree06be833c93f5428271951e61c30b63acbef46a3d /net/sctp/sm_sideeffect.c
parent6857a02af5386e9f5d11734363741dbe6b0a6959 (diff)
downloadlinux-566178f853c1aa57be9c16007c7cca07df5d51b6.tar.bz2
net: sctp: dynamically enable or disable pf state
As we all know, the value of pf_retrans >= max_retrans_path can disable pf state. The variables of pf_retrans and max_retrans_path can be changed by the userspace application. Sometimes the user expects to disable pf state while the 2 variables are changed to enable pf state. So it is necessary to introduce a new variable to disable pf state. According to the suggestions from Vlad Yasevich, extra1 and extra2 are removed. The initialization of pf_enable is added. Acked-by: Vlad Yasevich <vyasevich@gmail.com> Signed-off-by: Zhu Yanjun <zyjzyj2000@gmail.com> Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sctp/sm_sideeffect.c')
-rw-r--r--net/sctp/sm_sideeffect.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/net/sctp/sm_sideeffect.c b/net/sctp/sm_sideeffect.c
index 6098d4c42fa9..05cd16400e0b 100644
--- a/net/sctp/sm_sideeffect.c
+++ b/net/sctp/sm_sideeffect.c
@@ -477,6 +477,8 @@ static void sctp_do_8_2_transport_strike(sctp_cmd_seq_t *commands,
struct sctp_transport *transport,
int is_hb)
{
+ struct net *net = sock_net(asoc->base.sk);
+
/* The check for association's overall error counter exceeding the
* threshold is done in the state function.
*/
@@ -503,7 +505,8 @@ static void sctp_do_8_2_transport_strike(sctp_cmd_seq_t *commands,
* is SCTP_ACTIVE, then mark this transport as Partially Failed,
* see SCTP Quick Failover Draft, section 5.1
*/
- if ((transport->state == SCTP_ACTIVE) &&
+ if (net->sctp.pf_enable &&
+ (transport->state == SCTP_ACTIVE) &&
(asoc->pf_retrans < transport->pathmaxrxt) &&
(transport->error_count > asoc->pf_retrans)) {