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ocfs2: add fsdlm to stackglue

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Add code to use fs/dlm.

[ Modified to be part of the stack_user module -- Joel ]

Signed-off-by: David Teigland <teigland@redhat.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
This commit is contained in:
David Teigland
2008-02-20 14:29:27 -08:00
committed by Mark Fasheh
parent d4b95eef4d
commit cf4d8d75d8
3 changed files with 243 additions and 6 deletions
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14
fs/ocfs2/stackglue.c
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@@ -228,13 +228,20 @@ void ocfs2_stack_glue_set_locking_protocol(struct ocfs2_locking_protocol *proto)
EXPORT_SYMBOL_GPL(ocfs2_stack_glue_set_locking_protocol);
/*
* The ocfs2_dlm_lock() and ocfs2_dlm_unlock() functions take
* "struct ocfs2_lock_res *astarg" instead of "void *astarg" because the
* underlying stack plugins need to pilfer the lksb off of the lock_res.
* If some other structure needs to be passed as an astarg, the plugins
* will need to be given a different avenue to the lksb.
*/
int ocfs2_dlm_lock(struct ocfs2_cluster_connection *conn,
int mode,
union ocfs2_dlm_lksb *lksb,
u32 flags,
void *name,
unsigned int namelen,
void *astarg)
struct ocfs2_lock_res *astarg)
{
BUG_ON(lproto == NULL);
@@ -246,7 +253,7 @@ EXPORT_SYMBOL_GPL(ocfs2_dlm_lock);
int ocfs2_dlm_unlock(struct ocfs2_cluster_connection *conn,
union ocfs2_dlm_lksb *lksb,
u32 flags,
void *astarg)
struct ocfs2_lock_res *astarg)
{
BUG_ON(lproto == NULL);
@@ -360,7 +367,8 @@ void ocfs2_cluster_hangup(const char *group, int grouplen)
BUG_ON(group == NULL);
BUG_ON(group[grouplen] != '\0');
active_stack->sp_ops->hangup(group, grouplen);
if (active_stack->sp_ops->hangup)
active_stack->sp_ops->hangup(group, grouplen);
/* cluster_disconnect() was called with hangup_pending==1 */
ocfs2_stack_driver_put();