ocfs2: remove unused code

Remove node messaging code that becomes unused with the delete inode vote
removal.

[Removed even more cruft which I spotted during review --Mark]
Signed-off-by: Tiger Yang <tiger.yang@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>

fs/ocfs2/inode.c

@@ -89,24 +89,6 @@ void ocfs2_set_inode_flags(struct inode *inode)
 		inode->i_flags |= S_DIRSYNC;
 }
 
-struct inode *ocfs2_ilookup_for_vote(struct ocfs2_super *osb,
-				     u64 blkno,
-				     int delete_vote)
-{
-	struct ocfs2_find_inode_args args;
-
-	/* ocfs2_ilookup_for_vote should *only* be called from the
-	 * vote thread */
-	BUG_ON(current != osb->vote_task);
-
-	args.fi_blkno = blkno;
-	args.fi_flags = OCFS2_FI_FLAG_NOWAIT;
-	if (delete_vote)
-		args.fi_flags |= OCFS2_FI_FLAG_DELETE;
-	args.fi_ino = ino_from_blkno(osb->sb, blkno);
-	return ilookup5(osb->sb, args.fi_ino, ocfs2_find_actor, &args);
-}
-
 struct inode *ocfs2_iget(struct ocfs2_super *osb, u64 blkno, int flags)
 {
 	struct inode *inode = NULL;
@@ -182,28 +164,6 @@ static int ocfs2_find_actor(struct inode *inode, void *opaque)
 	if (oi->ip_blkno != args->fi_blkno)
 		goto bail;
 
-	/* OCFS2_FI_FLAG_NOWAIT is *only* set from
-	 * ocfs2_ilookup_for_vote which won't create an inode for one
-	 * that isn't found. The vote thread which doesn't want to get
-	 * an inode which is in the process of going away - otherwise
-	 * the call to __wait_on_freeing_inode in find_inode_fast will
-	 * cause it to deadlock on an inode which may be waiting on a
-	 * vote (or lock release) in delete_inode */
-	if ((args->fi_flags & OCFS2_FI_FLAG_NOWAIT) &&
-	    (inode->i_state & (I_FREEING|I_CLEAR))) {
-		/* As stated above, we're not going to return an
-		 * inode.  In the case of a delete vote, the voting
-		 * code is going to signal the other node to go
-		 * ahead. Mark that state here, so this freeing inode
-		 * has the state when it gets to delete_inode. */
-		if (args->fi_flags & OCFS2_FI_FLAG_DELETE) {
-			spin_lock(&oi->ip_lock);
-			ocfs2_mark_inode_remotely_deleted(inode);
-			spin_unlock(&oi->ip_lock);
-		}
-		goto bail;
-	}
-
 	ret = 1;
 bail:
 	mlog_exit(ret);

fs/ocfs2/inode.h

@@ -45,7 +45,6 @@ struct ocfs2_inode_info
 	u32				ip_clusters;
 	struct ocfs2_extent_map		ip_map;
 	struct list_head		ip_io_markers;
-	int				ip_orphaned_slot;
 
 	struct mutex			ip_io_mutex;
 
@@ -118,14 +117,9 @@ void ocfs2_delete_inode(struct inode *inode);
 void ocfs2_drop_inode(struct inode *inode);
 
 /* Flags for ocfs2_iget() */
-#define OCFS2_FI_FLAG_NOWAIT	0x1
-#define OCFS2_FI_FLAG_DELETE	0x2
 #define OCFS2_FI_FLAG_SYSFILE		0x4
 #define OCFS2_FI_FLAG_ORPHAN_RECOVERY	0x8
 struct inode *ocfs2_iget(struct ocfs2_super *osb, u64 feoff, int flags);
-struct inode *ocfs2_ilookup_for_vote(struct ocfs2_super *osb,
-				     u64 blkno,
-				     int delete_vote);
 int ocfs2_inode_init_private(struct inode *inode);
 int ocfs2_inode_revalidate(struct dentry *dentry);
 int ocfs2_populate_inode(struct inode *inode, struct ocfs2_dinode *fe,

fs/ocfs2/vote.h

@@ -38,14 +38,11 @@ static inline void ocfs2_kick_vote_thread(struct ocfs2_super *osb)
 	wake_up(&osb->vote_event);
 }
 
-int ocfs2_request_delete_vote(struct inode *inode);
 int ocfs2_request_mount_vote(struct ocfs2_super *osb);
 int ocfs2_request_umount_vote(struct ocfs2_super *osb);
 int ocfs2_register_net_handlers(struct ocfs2_super *osb);
 void ocfs2_unregister_net_handlers(struct ocfs2_super *osb);
 
-void ocfs2_mark_inode_remotely_deleted(struct inode *inode);
-
 void ocfs2_remove_node_from_vote_queues(struct ocfs2_super *osb,
 					int node_num);
 #endif