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* [DLM] lowcomms styleDavid Teigland2007-05-011-30/+37
| | | | | | | | | Replace some printk with log_print, and fix some simple cases of lines over 80. Also, return -ENOTCONN if lowcomms_start fails due to no local IP address being available. Signed-off-by: David Teigland <teigland@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [DLM] Lowcomms nodeid range & initialisation fixesPatrick Caulfield2007-05-011-9/+9
| | | | | | | | | | | Fix a few range & initialization bugs in lowcomms. - max_nodeid is really the highest nodeid encountered, so all loops must include it in their iterations. - clean dlm_local_count & connection_idr so we can do a clean restart. - Remove a spurious BUG_ON Signed-Off-By: Patrick Caulfield <pcaulfie@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [DLM] Fix dlm_lowcoms_stop hangJosef Bacik2007-05-011-1/+1
| | | | | | | | | When you attempt to release a lockspace in DLM, it will hang trying to down a semaphore that has already been downed. The attached patch fixes the problem. Signed-off-by: Josef Bacik <jwhiter@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com> Cc: Patrick Caulfield <pcaulfie@redhat.com>
* [DLM] Consolidate transport protocolsPatrick Caulfield2007-05-011-0/+1468
| | | | | | | | | | | | | | | This patch consolidates the TCP & SCTP protocols for the DLM into a single file and makes it switchable at run-time (well, at least before the DLM actually starts up!) For RHEL5 this patch requires Neil Horman's patch that expands the in-kernel socket API but that has already been twice ACKed so it should be OK. The patch adds a new lowcomms.c file that replaces the existing lowcomms-sctp.c & lowcomms-tcp.c files. Signed-off-By: Patrick Caulfield <pcaulfie@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [DLM] Add support for tcp communicationsPatrick Caulfield2006-11-301-1239/+0
| | | | | | | | | | | | The following patch adds a TCP based communications layer to the DLM which is compile time selectable. The existing SCTP layer gives the advantage of allowing multihoming, whereas the TCP layer has been heavily tested in previous versions of the DLM and is known to be robust and therefore can be used as a baseline for performance testing. Signed-off-by: Patrick Caulfield <pcaulfie@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [DLM] fix iovec length in recvmsgPatrick Caulfield2006-10-201-0/+1
| | | | | | | | | | I didn't spot that the msg_iovlen was set to 2 if there were two elements in the iovec but left at zero if not :( I think this might be why bob was still seeing trouble. Signed-Off-By: Patrick Caulfield <pcaulfie@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [DLM] fix iovec length in recvmsgPatrick Caulfield2006-10-121-1/+1
| | | | | | | | The DLM always passes the iovec length as 1, this is wrong when the circular buffer wraps round. Signed-Off-By: Patrick Caulfield <pcaulfie@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [PATCH] dlm gfp_t annotationsAl Viro2006-10-091-3/+3
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [DLM] move kmap to after spin_unlockDavid Teigland2006-08-111-1/+1
| | | | | | | | | Doing the kmap() while holding the spinlock was causing recursive spinlock problems. It seems the kmap was scheduling, although there was no warning as I'd expect. Patrick, do we need locking around the kmap? Signed-off-by: David Teigland <teigland@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [DLM] init rwsem earlierDavid Teigland2006-06-191-4/+3
| | | | | | | | The nodeinfo_lock rwsem needs to be initialized when the module is loaded instead of when the dlm is first used. Signed-off-by: David Teigland <teigland@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [GFS2] Change name due to local_nodeid being a macroSteven Whitehouse2006-05-251-24/+24
| | | | | | | | Change names of local_nodeid to dlm_local_nodeid to prevent a namespace collision. Changed other local variable to match. Cc: David Teigland <teigland@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [DLM] PATCH 2/3 dlm: lowcomms closeDavid Teigland2006-04-281-0/+21
| | | | | | | | | When a node is removed from a lockspace configuration, close our connection to it, clearing any remaining messages for it. Signed-off-by: David Teigland <teigland@redhat.com> Signed-off-by: Patrick Caulfield <pcaulfie@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [DLM] The core of the DLM for GFS2/CLVMDavid Teigland2006-01-181-0/+1218
This is the core of the distributed lock manager which is required to use GFS2 as a cluster filesystem. It is also used by CLVM and can be used as a standalone lock manager independantly of either of these two projects. It implements VAX-style locking modes. Signed-off-by: David Teigland <teigland@redhat.com> Signed-off-by: Steve Whitehouse <swhiteho@redhat.com>
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