Gitweb: http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=97d848365e603def43c69e160937f073bf9cf02e Commit: 97d848365e603def43c69e160937f073bf9cf02e Parent: 1875f2f31b3955dff8c3712a56ae61836c8b90fe Author: Patrick Caulfield <[EMAIL PROTECTED]> AuthorDate: Wed Jun 27 11:36:23 2007 +0100 Committer: Steven Whitehouse <[EMAIL PROTECTED]> CommitDate: Mon Jul 9 08:23:57 2007 +0100
[DLM] Telnet to port 21064 can stop all lockspaces This patch fixes Red Hat bz#245892 Opening a tcp connection from a cluster member to another cluster member targeting the dlm port it is enough to stop every dlm operation in the cluster. This means that GFS and rgmanager will hang. Signed-Off-By: Patrick Caulfield <[EMAIL PROTECTED]> Signed-off-by: Steven Whitehouse <[EMAIL PROTECTED]> --- fs/dlm/lowcomms.c | 14 ++++++++++---- 1 files changed, 10 insertions(+), 4 deletions(-) diff --git a/fs/dlm/lowcomms.c b/fs/dlm/lowcomms.c index fc0bff7..73d44f5 100644 --- a/fs/dlm/lowcomms.c +++ b/fs/dlm/lowcomms.c @@ -720,11 +720,17 @@ static int tcp_accept_from_sock(struct connection *con) INIT_WORK(&othercon->rwork, process_recv_sockets); set_bit(CF_IS_OTHERCON, &othercon->flags); newcon->othercon = othercon; + othercon->sock = newsock; + newsock->sk->sk_user_data = othercon; + add_sock(newsock, othercon); + addcon = othercon; + } + else { + printk("Extra connection from node %d attempted\n", nodeid); + result = -EAGAIN; + up_write(&newcon->sock_sem); + goto accept_err; } - othercon->sock = newsock; - newsock->sk->sk_user_data = othercon; - add_sock(newsock, othercon); - addcon = othercon; } else { newsock->sk->sk_user_data = newcon; - To unsubscribe from this list: send the line "unsubscribe git-commits-head" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html