diff options
| author | Alex Elder <elder@inktank.com> | 2012-06-21 04:53:53 +0200 |
|---|---|---|
| committer | Sage Weil <sage@inktank.com> | 2012-07-06 06:14:20 +0200 |
| commit | 188048bce311ee41e5178bc3255415d0eae28423 (patch) | |
| tree | 664eb69384323440f984f1fcd96075753fc1b286 /net | |
| parent | libceph: SOCK_CLOSED is a flag, not a state (diff) | |
| download | linux-188048bce311ee41e5178bc3255415d0eae28423.tar.xz linux-188048bce311ee41e5178bc3255415d0eae28423.zip | |
libceph: don't change socket state on sock event
Currently the socket state change event handler records an error
message on a connection to distinguish a close while connecting from
a close while a connection was already established.
Changing connection information during handling of a socket event is
not very clean, so instead move this assignment inside con_work(),
where it can be done during normal connection-level processing (and
under protection of the connection mutex as well).
Move the handling of a socket closed event up to the top of the
processing loop in con_work(); there's no point in handling backoff
etc. if we have a newly-closed socket to take care of.
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
Diffstat (limited to 'net')
| -rw-r--r-- | net/ceph/messenger.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c index 39653944f21b..56381b973d02 100644 --- a/net/ceph/messenger.c +++ b/net/ceph/messenger.c @@ -261,13 +261,8 @@ static void ceph_sock_state_change(struct sock *sk) case TCP_CLOSE_WAIT: dout("%s TCP_CLOSE_WAIT\n", __func__); con_sock_state_closing(con); - if (test_and_set_bit(SOCK_CLOSED, &con->flags) == 0) { - if (test_bit(CONNECTING, &con->state)) - con->error_msg = "connection failed"; - else - con->error_msg = "socket closed"; + if (!test_and_set_bit(SOCK_CLOSED, &con->flags)) queue_con(con); - } break; case TCP_ESTABLISHED: dout("%s TCP_ESTABLISHED\n", __func__); @@ -2187,6 +2182,14 @@ static void con_work(struct work_struct *work) mutex_lock(&con->mutex); restart: + if (test_and_clear_bit(SOCK_CLOSED, &con->flags)) { + if (test_bit(CONNECTING, &con->state)) + con->error_msg = "connection failed"; + else + con->error_msg = "socket closed"; + goto fault; + } + if (test_and_clear_bit(BACKOFF, &con->flags)) { dout("con_work %p backing off\n", con); if (queue_delayed_work(ceph_msgr_wq, &con->work, @@ -2216,9 +2219,6 @@ restart: con_close_socket(con); } - if (test_and_clear_bit(SOCK_CLOSED, &con->flags)) - goto fault; - ret = try_read(con); if (ret == -EAGAIN) goto restart; |