xfs: shorten xfs_scrub_ prefix

Shorten all the metadata checking xfs_scrub_ prefixes to xchk_.  After
this, the only xfs_scrub* symbols are the ones that pertain to both
scrub and repair.  Whitespace damage will be fixed in a subsequent
patch.  There are no functional changes.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>

fs/xfs/scrub/btree.h

@@ -9,32 +9,32 @@
 /* btree scrub */
 
 /* Check for btree operation errors. */
-bool xfs_scrub_btree_process_error(struct xfs_scrub_context *sc,
+bool xchk_btree_process_error(struct xfs_scrub_context *sc,
 		struct xfs_btree_cur *cur, int level, int *error);
 
 /* Check for btree xref operation errors. */
-bool xfs_scrub_btree_xref_process_error(struct xfs_scrub_context *sc,
+bool xchk_btree_xref_process_error(struct xfs_scrub_context *sc,
 				struct xfs_btree_cur *cur, int level,
 				int *error);
 
 /* Check for btree corruption. */
-void xfs_scrub_btree_set_corrupt(struct xfs_scrub_context *sc,
+void xchk_btree_set_corrupt(struct xfs_scrub_context *sc,
 		struct xfs_btree_cur *cur, int level);
 
 /* Check for btree xref discrepancies. */
-void xfs_scrub_btree_xref_set_corrupt(struct xfs_scrub_context *sc,
+void xchk_btree_xref_set_corrupt(struct xfs_scrub_context *sc,
 		struct xfs_btree_cur *cur, int level);
 
-struct xfs_scrub_btree;
-typedef int (*xfs_scrub_btree_rec_fn)(
-	struct xfs_scrub_btree	*bs,
+struct xchk_btree;
+typedef int (*xchk_btree_rec_fn)(
+	struct xchk_btree	*bs,
 	union xfs_btree_rec	*rec);
 
-struct xfs_scrub_btree {
+struct xchk_btree {
 	/* caller-provided scrub state */
 	struct xfs_scrub_context	*sc;
 	struct xfs_btree_cur		*cur;
-	xfs_scrub_btree_rec_fn		scrub_rec;
+	xchk_btree_rec_fn		scrub_rec;
 	struct xfs_owner_info		*oinfo;
 	void				*private;
 
@@ -45,8 +45,8 @@ struct xfs_scrub_btree {
 	bool				firstkey[XFS_BTREE_MAXLEVELS];
 	struct list_head		to_check;
 };
-int xfs_scrub_btree(struct xfs_scrub_context *sc, struct xfs_btree_cur *cur,
-		    xfs_scrub_btree_rec_fn scrub_fn,
+int xchk_btree(struct xfs_scrub_context *sc, struct xfs_btree_cur *cur,
+		    xchk_btree_rec_fn scrub_fn,
 		    struct xfs_owner_info *oinfo, void *private);
 
 #endif /* __XFS_SCRUB_BTREE_H__ */