From: Patrick Caulfield <[email protected]>
The last patch to clean out 'othercon' structures only fixed half the problem.
The attached addresses the other situations too, and fixes bz#238490
Signed-Off-By: Patrick Caulfield <[email protected]>
Signed-off-by: Steven Whitehouse <[email protected]>
diff --git a/fs/dlm/lowcomms.c b/fs/dlm/lowcomms.c
index 631bc43..9e9d2e8 100644
--- a/fs/dlm/lowcomms.c
+++ b/fs/dlm/lowcomms.c
@@ -328,15 +328,24 @@ static void close_connection(struct connection *con, bool and_other)
if (con->othercon && and_other) {
/* Will only re-enter once. */
close_connection(con->othercon, false);
- kmem_cache_free(con_cache, con->othercon);
- con->othercon = NULL;
}
if (con->rx_page) {
__free_page(con->rx_page);
con->rx_page = NULL;
}
- con->retries = 0;
- mutex_unlock(&con->sock_mutex);
+
+ /* If we are an 'othercon' then NULL the pointer to us
+ from the parent and tidy ourself up */
+ if (test_bit(CF_IS_OTHERCON, &con->flags)) {
+ struct connection *parent = __nodeid2con(con->nodeid, 0);
+ parent->othercon = NULL;
+ kmem_cache_free(con_cache, con);
+ }
+ else {
+ /* Parent connections get reused */
+ con->retries = 0;
+ mutex_unlock(&con->sock_mutex);
+ }
}
/* We only send shutdown messages to nodes that are not part of the cluster */
@@ -634,7 +643,7 @@ out_resched:
out_close:
mutex_unlock(&con->sock_mutex);
- if (ret != -EAGAIN && !test_bit(CF_IS_OTHERCON, &con->flags)) {
+ if (ret != -EAGAIN) {
close_connection(con, false);
/* Reconnect when there is something to send */
}
@@ -1125,8 +1134,6 @@ static int tcp_listen_for_all(void)
log_print("Using TCP for communications");
- set_bit(CF_IS_OTHERCON, &con->flags);
-
sock = tcp_create_listen_sock(con, dlm_local_addr[0]);
if (sock) {
add_sock(sock, con);
@@ -1410,7 +1417,7 @@ void dlm_lowcomms_stop(void)
for (i = 0; i <= max_nodeid; i++) {
con = __nodeid2con(i, 0);
if (con) {
- con->flags |= 0xFF;
+ con->flags |= 0x0F;
if (con->sock)
con->sock->sk->sk_user_data = NULL;
}
@@ -1426,8 +1433,6 @@ void dlm_lowcomms_stop(void)
con = __nodeid2con(i, 0);
if (con) {
close_connection(con, true);
- if (con->othercon)
- kmem_cache_free(con_cache, con->othercon);
kmem_cache_free(con_cache, con);
}
}
--
1.5.1.2
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]