diff options
| -rw-r--r-- | net/ceph/messenger.c | 32 |
1 files changed, 18 insertions, 14 deletions
diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c index e1e53bb2d0cf..44d8c77cabdd 100644 --- a/net/ceph/messenger.c +++ b/net/ceph/messenger.c @@ -80,8 +80,8 @@ const char *ceph_pr_addr(const struct sockaddr_storage *ss) break; default: - snprintf(s, MAX_ADDR_STR_LEN, "(unknown sockaddr family %d)", - (int)ss->ss_family); + snprintf(s, MAX_ADDR_STR_LEN, "(unknown sockaddr family %hu)", + ss->ss_family); } return s; @@ -101,8 +101,10 @@ static struct workqueue_struct *ceph_msgr_wq; void _ceph_msgr_exit(void) { - if (ceph_msgr_wq) + if (ceph_msgr_wq) { destroy_workqueue(ceph_msgr_wq); + ceph_msgr_wq = NULL; + } BUG_ON(zero_page_address == NULL); zero_page_address = NULL; @@ -167,8 +169,7 @@ static void ceph_data_ready(struct sock *sk, int count_unused) /* socket has buffer space for writing */ static void ceph_write_space(struct sock *sk) { - struct ceph_connection *con = - (struct ceph_connection *)sk->sk_user_data; + struct ceph_connection *con = sk->sk_user_data; /* only queue to workqueue if there is data we want to write, * and there is sufficient space in the socket buffer to accept @@ -216,6 +217,8 @@ static void ceph_state_change(struct sock *sk) dout("ceph_state_change TCP_ESTABLISHED\n"); queue_con(con); break; + default: /* Everything else is uninteresting */ + break; } } @@ -420,22 +423,23 @@ bool ceph_con_opened(struct ceph_connection *con) */ struct ceph_connection *ceph_con_get(struct ceph_connection *con) { - dout("con_get %p nref = %d -> %d\n", con, - atomic_read(&con->nref), atomic_read(&con->nref) + 1); - if (atomic_inc_not_zero(&con->nref)) - return con; - return NULL; + int nref = __atomic_add_unless(&con->nref, 1, 0); + + dout("con_get %p nref = %d -> %d\n", con, nref, nref + 1); + + return nref ? con : NULL; } void ceph_con_put(struct ceph_connection *con) { - dout("con_put %p nref = %d -> %d\n", con, - atomic_read(&con->nref), atomic_read(&con->nref) - 1); - BUG_ON(atomic_read(&con->nref) == 0); - if (atomic_dec_and_test(&con->nref)) { + int nref = atomic_dec_return(&con->nref); + + BUG_ON(nref < 0); + if (nref == 0) { BUG_ON(con->sock); kfree(con); } + dout("con_put %p nref = %d -> %d\n", con, nref + 1, nref); } /* |