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[DLM] fix socket shutdown

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This patch clears the user_data of active sockets as part of cleanup.
This prevents any late-arriving data from trying to add jobs to the work
queue while we are tidying up.

Signed-Off-By: Patrick Caulfield <pcaulfie@redhat.com>
Signed-Off-By: David Teigland <teigland@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
This commit is contained in:
Patrick Caulfield 2007-06-01 10:07:26 -05:00 committed by Steven Whitehouse
parent 89918647a4
commit afb853fb4e
1 changed files with 6 additions and 3 deletions
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9
fs/dlm/lowcomms.c
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@ -260,7 +260,7 @@ static int nodeid_to_addr(int nodeid, struct sockaddr *retaddr)
static void lowcomms_data_ready(struct sock *sk, int count_unused)
{
struct connection *con = sock2con(sk);
if (!test_and_set_bit(CF_READ_PENDING, &con->flags))
if (con && !test_and_set_bit(CF_READ_PENDING, &con->flags))
queue_work(recv_workqueue, &con->rwork);
}
@ -268,7 +268,7 @@ static void lowcomms_write_space(struct sock *sk)
{
struct connection *con = sock2con(sk);
if (!test_and_set_bit(CF_WRITE_PENDING, &con->flags))
if (con && !test_and_set_bit(CF_WRITE_PENDING, &con->flags))
queue_work(send_workqueue, &con->swork);
}
@ -1400,8 +1400,11 @@ void dlm_lowcomms_stop(void)
down(&connections_lock);
for (i = 0; i <= max_nodeid; i++) {
con = __nodeid2con(i, 0);
if (con)
if (con) {
con->flags |= 0xFF;
if (con->sock)
con->sock->sk->sk_user_data = NULL;
}
}
up(&connections_lock);