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authorAlexander Aring2020-11-02 20:04:20 -0500
committerDavid Teigland2020-11-10 12:14:20 -0600
commit19633c7e204b99fe9b952c70b712778b24a8d137 (patch)
treeeb2aa533a6c92ca44730829f4c04944f0dda4831 /fs/dlm
parent53a5edaa05c1073e47668f167ec9788383c780e1 (diff)
fs: dlm: handle non blocked connect event
The manpage of connect shows that in non blocked mode a writeability indicates successful connection event. This patch is handling this event inside the writeability callback. In case of SCTP we use blocking connect functionality which indicates a successful connect when the function returns with a successful return value. Signed-off-by: Alexander Aring <aahringo@redhat.com> Signed-off-by: David Teigland <teigland@redhat.com>
Diffstat (limited to 'fs/dlm')
-rw-r--r--fs/dlm/lowcomms.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/fs/dlm/lowcomms.c b/fs/dlm/lowcomms.c
index c0c688aac223..193a4c91c4d8 100644
--- a/fs/dlm/lowcomms.c
+++ b/fs/dlm/lowcomms.c
@@ -78,6 +78,7 @@ struct connection {
#define CF_APP_LIMITED 7
#define CF_CLOSING 8
#define CF_SHUTDOWN 9
+#define CF_CONNECTED 10
struct list_head writequeue; /* List of outgoing writequeue_entries */
spinlock_t writequeue_lock;
int (*rx_action) (struct connection *); /* What to do when active */
@@ -419,6 +420,12 @@ static void lowcomms_write_space(struct sock *sk)
if (!con)
goto out;
+ if (!test_and_set_bit(CF_CONNECTED, &con->flags)) {
+ log_print("successful connected to node %d", con->nodeid);
+ queue_work(send_workqueue, &con->swork);
+ goto out;
+ }
+
clear_bit(SOCK_NOSPACE, &con->sock->flags);
if (test_and_clear_bit(CF_APP_LIMITED, &con->flags)) {
@@ -604,6 +611,7 @@ static void close_connection(struct connection *con, bool and_other,
con->rx_leftover = 0;
con->retries = 0;
+ clear_bit(CF_CONNECTED, &con->flags);
mutex_unlock(&con->sock_mutex);
clear_bit(CF_CLOSING, &con->flags);
}
@@ -1027,8 +1035,11 @@ static void sctp_connect_to_sock(struct connection *con)
if (result == -EINPROGRESS)
result = 0;
- if (result == 0)
+ if (result == 0) {
+ if (!test_and_set_bit(CF_CONNECTED, &con->flags))
+ log_print("successful connected to node %d", con->nodeid);
goto out;
+ }
bind_err:
con->sock = NULL;