[XFS] remove bhv_lookup, _range version works aswell and has more useful

semantics.

SGI-PV: 954580
SGI-Modid: xfs-linux-melb:xfs-kern:26563a
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nathan Scott <nathans@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>

fs/xfs/linux-2.6/xfs_vnode.h

@@ -85,8 +85,6 @@ typedef enum {
 #define VN_BHV_HEAD(vp)			((bhv_head_t *)(&((vp)->v_bh)))
 #define vn_bhv_head_init(bhp,name)	bhv_head_init(bhp,name)
 #define vn_bhv_remove(bhp,bdp)		bhv_remove(bhp,bdp)
-#define vn_bhv_lookup(bhp,ops)		bhv_lookup(bhp,ops)
-#define vn_bhv_lookup_unlocked(bhp,ops) bhv_lookup_unlocked(bhp,ops)
 
 /*
  * Vnode to Linux inode mapping.

fs/xfs/xfs_behavior.c

@@ -109,26 +109,6 @@ bhv_remove_not_first(bhv_head_t *bhp, bhv_desc_t *bdp)
 	prev->bd_next = bdp->bd_next;	/* remove from after prev */
 }
 
-/*
- * Look for a specific ops vector on the specified behavior chain.
- * Return the associated behavior descriptor.  Or NULL, if not found.
- */
-bhv_desc_t *
-bhv_lookup(bhv_head_t *bhp, void *ops)
-{
-	bhv_desc_t	*curdesc;
-
-	for (curdesc = bhp->bh_first;
-	     curdesc != NULL;
-	     curdesc = curdesc->bd_next) {
-
-		if (curdesc->bd_ops == ops)
-			return curdesc;
-	}
-
-	return NULL;
-}
-
 /*
  * Looks for the first behavior within a specified range of positions.
  * Return the associated behavior descriptor.  Or NULL, if none found.

fs/xfs/xfs_behavior.h

@@ -176,12 +176,10 @@ extern void bhv_insert_initial(bhv_head_t *, bhv_desc_t *);
  * Behavior module prototypes.
  */
 extern void		bhv_remove_not_first(bhv_head_t *bhp, bhv_desc_t *bdp);
-extern bhv_desc_t *	bhv_lookup(bhv_head_t *bhp, void *ops);
 extern bhv_desc_t *	bhv_lookup_range(bhv_head_t *bhp, int low, int high);
 extern bhv_desc_t *	bhv_base(bhv_head_t *bhp);
 
 /* No bhv locking on Linux */
-#define bhv_lookup_unlocked	bhv_lookup
 #define bhv_base_unlocked	bhv_base
 
 #endif /* __XFS_BEHAVIOR_H__ */

fs/xfs/xfs_mount.h

@@ -541,7 +541,8 @@ static inline xfs_mount_t *xfs_bhvtom(bhv_desc_t *bdp)
 #define XFS_VFSTOM(vfs) xfs_vfstom(vfs)
 static inline xfs_mount_t *xfs_vfstom(bhv_vfs_t *vfs)
 {
-	return XFS_BHVTOM(bhv_lookup(VFS_BHVHEAD(vfs), &xfs_vfsops));
+	return XFS_BHVTOM(bhv_lookup_range(VFS_BHVHEAD(vfs),
+				VFS_POSITION_XFS, VFS_POSITION_XFS));
 }
 
 #define XFS_DADDR_TO_AGNO(mp,d)         xfs_daddr_to_agno(mp,d)