From: Wendy Cheng <wcheng@redhat.com>
To: cluster-devel.redhat.com
Subject: [Cluster-devel] [PATCH 1/4 Revised] NLM - drop per fsid locks
Date: Thu, 05 Apr 2007 17:51:28 -0400 [thread overview]
Message-ID: <46156F60.1040400@redhat.com> (raw)
By writing exported filesytem id into /proc/fs/nfsd/nlm_unlock, this
patch walks thru lockd's global nlm_files list to release all the locks
associated with the particular id. It is used to enable NFS lock
failover with active-active clustered servers.
Relevant steps:
1) Exports filesystem with "fsid" option as:
/etc/exports entry> /mnt/shared/exports *(fsid=1234,sync,rw)
2) Drops locks based on fsid by:
shell> echo 1234 > /proc/fs/nfsd/nlm_unlock
-- Wendy
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next reply other threads:[~2007-04-05 21:51 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-05 21:51 Wendy Cheng [this message]
2007-04-09 18:49 ` [Cluster-devel] Re: [NFS] [PATCH 1/4 Revised] NLM - drop per fsid locks Christoph Hellwig
2007-04-09 22:56 ` S. Wendy Cheng
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