fs: dlm: set skb mark for listen socket

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>

diff --git a/fs/dlm/config.c b/fs/dlm/config.c
index 3b21082e1b550f9d99fa88ad11bdf44113b73996..d74655cd6cd3f5c4dc2055d47e4aeb2430ad3882 100644 (file)
--- a/fs/dlm/config.c
+++ b/fs/dlm/config.c
@@ -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,

diff --git a/fs/dlm/config.h b/fs/dlm/config.h
index 2b471aae4e61cede203975c777270ae566d20498..13508ec3ff5ea6197a905da6019e1fc7f7ab2f6e 100644 (file)
--- a/fs/dlm/config.h
+++ b/fs/dlm/config.h
@@ -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;

diff --git a/fs/dlm/lowcomms.c b/fs/dlm/lowcomms.c
index 3543a8fec9075bd2ba05f5f80dacb204d409ea2c..eaedad7d069a85d91c391bf164deef50f25f7e86 100644 (file)
--- a/fs/dlm/lowcomms.c
+++ b/fs/dlm/lowcomms.c
@@ -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);