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authorJoel Becker <joel.becker@oracle.com>2008-02-02 01:39:35 +0300
committerMark Fasheh <mfasheh@suse.com>2008-04-18 19:56:04 +0400
commit4670c46ded9a18268d1265417ff4ac72145a7917 (patch)
tree4f70822ddee389a9c8ed572b215a3355c20db3a1 /fs/ocfs2/dlmglue.h
parent8f2c9c1b16bf6ed0903b29c49d56fa0109a390e4 (diff)
downloadlinux-4670c46ded9a18268d1265417ff4ac72145a7917.tar.xz
ocfs2: Introduce the new ocfs2_cluster_connect/disconnect() API.
This step introduces a cluster stack agnostic API for initializing and exiting. fs/ocfs2/dlmglue.c no longer uses o2cb/o2dlm knowledge to connect to the stack. It is all handled in stackglue.c. heartbeat.c no longer needs to know how it gets called. ocfs2_do_node_down() is now a clean recovery trigger. The big gotcha is the ordering of initializations and de-initializations done underneath ocfs2_cluster_connect(). ocfs2_dlm_init() used to do all o2dlm initialization in one block. Thus, the o2dlm functionality of ocfs2_cluster_connect() is very straightforward. ocfs2_dlm_shutdown(), however, did a few things between de-registration of the eviction callback and actually shutting down the domain. Now de-registration and shutdown of the domain are wrapped within the single ocfs2_cluster_disconnect() call. I've checked the code paths to make sure we can safely tear down things in ocfs2_dlm_shutdown() before calling ocfs2_cluster_disconnect(). The filesystem has already set itself to ignore the callback. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
Diffstat (limited to 'fs/ocfs2/dlmglue.h')
-rw-r--r--fs/ocfs2/dlmglue.h1
1 files changed, 0 insertions, 1 deletions
diff --git a/fs/ocfs2/dlmglue.h b/fs/ocfs2/dlmglue.h
index 32380439401f..2d0a8a03c431 100644
--- a/fs/ocfs2/dlmglue.h
+++ b/fs/ocfs2/dlmglue.h
@@ -117,5 +117,4 @@ void ocfs2_put_dlm_debug(struct ocfs2_dlm_debug *dlm_debug);
void dlmglue_init_stack(void);
void dlmglue_exit_stack(void);
-extern const struct dlm_protocol_version ocfs2_locking_protocol;
#endif /* DLMGLUE_H */