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libceph: transition socket state prior to actual connect

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Once we call ->connect(), we are racing against the actual
connection, and a subsequent transition from CONNECTING ->
CONNECTED.  Set the state to CONNECTING before that, under the
protection of the mutex, to avoid the race.

This was introduced in 928443cd96,
with the original socket state code.

Signed-off-by: Sage Weil <sage@inktank.com>
Reviewed-by: Alex Elder <elder@inktank.com>
This commit is contained in:
Sage Weil 2012-06-09 14:19:21 -07:00
parent a550604950
commit 89a86be0ce
1 changed files with 1 additions and 2 deletions
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3
net/ceph/messenger.c
View file

@ -321,6 +321,7 @@ static int ceph_tcp_connect(struct ceph_connection *con)
dout("connect %s\n", ceph_pr_addr(&con->peer_addr.in_addr));
con_sock_state_connecting(con);
ret = sock->ops->connect(sock, (struct sockaddr *)paddr, sizeof(*paddr),
O_NONBLOCK);
if (ret == -EINPROGRESS) {
@ -336,8 +337,6 @@ static int ceph_tcp_connect(struct ceph_connection *con)
return ret;
}
con->sock = sock;
con_sock_state_connecting(con);
return 0;
}