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fs: dlm: set skb mark for listen socket

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This patch adds support to set the skb mark value for the DLM listen
tcp and sctp sockets. The mark value will be offered as cluster
configuration. At creation time of the listen socket it will be set as
socket option.

Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
This commit is contained in:
Alexander Aring 2020-06-26 13:26:49 -04:00 committed by David Teigland
parent 84d1c61740
commit a5b7ab6352
3 changed files with 10 additions and 0 deletions
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6
fs/dlm/config.c
View file

@ -73,6 +73,7 @@ struct dlm_cluster {
unsigned int cl_log_debug;
unsigned int cl_log_info;
unsigned int cl_protocol;
unsigned int cl_mark;
unsigned int cl_timewarn_cs;
unsigned int cl_waitwarn_us;
unsigned int cl_new_rsb_count;
@ -96,6 +97,7 @@ enum {
CLUSTER_ATTR_LOG_DEBUG,
CLUSTER_ATTR_LOG_INFO,
CLUSTER_ATTR_PROTOCOL,
CLUSTER_ATTR_MARK,
CLUSTER_ATTR_TIMEWARN_CS,
CLUSTER_ATTR_WAITWARN_US,
CLUSTER_ATTR_NEW_RSB_COUNT,
@ -168,6 +170,7 @@ CLUSTER_ATTR(scan_secs, 1);
CLUSTER_ATTR(log_debug, 0);
CLUSTER_ATTR(log_info, 0);
CLUSTER_ATTR(protocol, 0);
CLUSTER_ATTR(mark, 0);
CLUSTER_ATTR(timewarn_cs, 1);
CLUSTER_ATTR(waitwarn_us, 0);
CLUSTER_ATTR(new_rsb_count, 0);
@ -183,6 +186,7 @@ static struct configfs_attribute *cluster_attrs[] = {
[CLUSTER_ATTR_LOG_DEBUG] = &cluster_attr_log_debug,
[CLUSTER_ATTR_LOG_INFO] = &cluster_attr_log_info,
[CLUSTER_ATTR_PROTOCOL] = &cluster_attr_protocol,
[CLUSTER_ATTR_MARK] = &cluster_attr_mark,
[CLUSTER_ATTR_TIMEWARN_CS] = &cluster_attr_timewarn_cs,
[CLUSTER_ATTR_WAITWARN_US] = &cluster_attr_waitwarn_us,
[CLUSTER_ATTR_NEW_RSB_COUNT] = &cluster_attr_new_rsb_count,
@ -855,6 +859,7 @@ int dlm_our_addr(struct sockaddr_storage *addr, int num)
#define DEFAULT_LOG_DEBUG 0
#define DEFAULT_LOG_INFO 1
#define DEFAULT_PROTOCOL 0
#define DEFAULT_MARK 0
#define DEFAULT_TIMEWARN_CS 500 /* 5 sec = 500 centiseconds */
#define DEFAULT_WAITWARN_US 0
#define DEFAULT_NEW_RSB_COUNT 128
@ -871,6 +876,7 @@ struct dlm_config_info dlm_config = {
.ci_log_debug = DEFAULT_LOG_DEBUG,
.ci_log_info = DEFAULT_LOG_INFO,
.ci_protocol = DEFAULT_PROTOCOL,
.ci_mark = DEFAULT_MARK,
.ci_timewarn_cs = DEFAULT_TIMEWARN_CS,
.ci_waitwarn_us = DEFAULT_WAITWARN_US,
.ci_new_rsb_count = DEFAULT_NEW_RSB_COUNT,

1
fs/dlm/config.h
View file

@ -31,6 +31,7 @@ struct dlm_config_info {
int ci_log_debug;
int ci_log_info;
int ci_protocol;
int ci_mark;
int ci_timewarn_cs;
int ci_waitwarn_us;
int ci_new_rsb_count;

3
fs/dlm/lowcomms.c
View file

@ -1111,6 +1111,8 @@ static struct socket *tcp_create_listen_sock(struct connection *con,
goto create_out;
}
sock_set_mark(sock->sk, dlm_config.ci_mark);
/* Turn off Nagle's algorithm */
tcp_sock_set_nodelay(sock->sk);
@ -1185,6 +1187,7 @@ static int sctp_listen_for_all(void)
}
sock_set_rcvbuf(sock->sk, NEEDED_RMEM);
sock_set_mark(sock->sk, dlm_config.ci_mark);
sctp_sock_set_nodelay(sock->sk);
write_lock_bh(&sock->sk->sk_callback_lock);