diff options
Diffstat (limited to 'fs/dlm')
| -rw-r--r-- | fs/dlm/debug_fs.c | 12 | ||||
| -rw-r--r-- | fs/dlm/lowcomms.c | 26 |
2 files changed, 22 insertions, 16 deletions
diff --git a/fs/dlm/debug_fs.c b/fs/dlm/debug_fs.c index 1d1d2744223..1c8bb8c3a82 100644 --- a/fs/dlm/debug_fs.c +++ b/fs/dlm/debug_fs.c @@ -386,9 +386,9 @@ static int table_seq_show(struct seq_file *seq, void *iter_ptr) return rv; } -static struct seq_operations format1_seq_ops; -static struct seq_operations format2_seq_ops; -static struct seq_operations format3_seq_ops; +static const struct seq_operations format1_seq_ops; +static const struct seq_operations format2_seq_ops; +static const struct seq_operations format3_seq_ops; static void *table_seq_start(struct seq_file *seq, loff_t *pos) { @@ -534,21 +534,21 @@ static void table_seq_stop(struct seq_file *seq, void *iter_ptr) } } -static struct seq_operations format1_seq_ops = { +static const struct seq_operations format1_seq_ops = { .start = table_seq_start, .next = table_seq_next, .stop = table_seq_stop, .show = table_seq_show, }; -static struct seq_operations format2_seq_ops = { +static const struct seq_operations format2_seq_ops = { .start = table_seq_start, .next = table_seq_next, .stop = table_seq_stop, .show = table_seq_show, }; -static struct seq_operations format3_seq_ops = { +static const struct seq_operations format3_seq_ops = { .start = table_seq_start, .next = table_seq_next, .stop = table_seq_stop, diff --git a/fs/dlm/lowcomms.c b/fs/dlm/lowcomms.c index 618a60f0388..240cef14fe5 100644 --- a/fs/dlm/lowcomms.c +++ b/fs/dlm/lowcomms.c @@ -106,6 +106,7 @@ struct connection { #define CF_CONNECT_PENDING 3 #define CF_INIT_PENDING 4 #define CF_IS_OTHERCON 5 +#define CF_CLOSE 6 struct list_head writequeue; /* List of outgoing writequeue_entries */ spinlock_t writequeue_lock; int (*rx_action) (struct connection *); /* What to do when active */ @@ -299,6 +300,8 @@ static void lowcomms_write_space(struct sock *sk) static inline void lowcomms_connect_sock(struct connection *con) { + if (test_bit(CF_CLOSE, &con->flags)) + return; if (!test_and_set_bit(CF_CONNECT_PENDING, &con->flags)) queue_work(send_workqueue, &con->swork); } @@ -926,10 +929,8 @@ static void tcp_connect_to_sock(struct connection *con) goto out_err; memset(&saddr, 0, sizeof(saddr)); - if (dlm_nodeid_to_addr(con->nodeid, &saddr)) { - sock_release(sock); + if (dlm_nodeid_to_addr(con->nodeid, &saddr)) goto out_err; - } sock->sk->sk_user_data = con; con->rx_action = receive_from_sock; @@ -1284,7 +1285,6 @@ out: static void send_to_sock(struct connection *con) { int ret = 0; - ssize_t(*sendpage) (struct socket *, struct page *, int, size_t, int); const int msg_flags = MSG_DONTWAIT | MSG_NOSIGNAL; struct writequeue_entry *e; int len, offset; @@ -1293,8 +1293,6 @@ static void send_to_sock(struct connection *con) if (con->sock == NULL) goto out_connect; - sendpage = con->sock->ops->sendpage; - spin_lock(&con->writequeue_lock); for (;;) { e = list_entry(con->writequeue.next, struct writequeue_entry, @@ -1309,8 +1307,8 @@ static void send_to_sock(struct connection *con) ret = 0; if (len) { - ret = sendpage(con->sock, e->page, offset, len, - msg_flags); + ret = kernel_sendpage(con->sock, e->page, offset, len, + msg_flags); if (ret == -EAGAIN || ret == 0) { cond_resched(); goto out; @@ -1370,6 +1368,13 @@ int dlm_lowcomms_close(int nodeid) log_print("closing connection to node %d", nodeid); con = nodeid2con(nodeid, 0); if (con) { + clear_bit(CF_CONNECT_PENDING, &con->flags); + clear_bit(CF_WRITE_PENDING, &con->flags); + set_bit(CF_CLOSE, &con->flags); + if (cancel_work_sync(&con->swork)) + log_print("canceled swork for node %d", nodeid); + if (cancel_work_sync(&con->rwork)) + log_print("canceled rwork for node %d", nodeid); clean_one_writequeue(con); close_connection(con, true); } @@ -1395,9 +1400,10 @@ static void process_send_sockets(struct work_struct *work) if (test_and_clear_bit(CF_CONNECT_PENDING, &con->flags)) { con->connect_action(con); + set_bit(CF_WRITE_PENDING, &con->flags); } - clear_bit(CF_WRITE_PENDING, &con->flags); - send_to_sock(con); + if (test_and_clear_bit(CF_WRITE_PENDING, &con->flags)) + send_to_sock(con); } |