2 Commits

Author	SHA1	Message	Date
Mark Fasheh	53da4939f3	ocfs2: POSIX file locks support ... This is actually pretty easy since fs/dlm already handles the bulk of the work. The Ocfs2 userspace cluster stack module already uses fs/dlm as the underlying lock manager, so I only had to add the right calls. Cluster-aware POSIX locks ("plocks") can be turned off by the same means at UNIX locks - mount with 'noflocks', or create a local-only Ocfs2 volume. Internally, the file system uses two sets of file_operations, depending on whether cluster aware plocks is required. This turns out to be easier than implementing local-only versions of ->lock. Signed-off-by: Mark Fasheh <mfasheh@suse.com>	2008-10-13 13:57:57 -07:00
Mark Fasheh	53fc622b9e	[PATCH 2/2] ocfs2: cluster aware flock() ... Hook up ocfs2_flock(), using the new flock lock type in dlmglue.c. A new mount option, "localflocks" is added so that users can revert to old functionality as need be. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>	2008-01-25 15:05:43 -08:00