[XFS] Fix up a pagebuf spelling mistake and a couple of whitespace botches.

SGI Modid: 2.5.x-xfs:slinx:148595a

fs/xfs/pagebuf/page_buf.c

@@ -181,7 +181,7 @@ _bhash(
 	 * dev_t is 16 bits, loff_t is always 64 bits
 	 */
 	base ^= dev;
-	for (bit = hval = 0; base != 0 && bit < sizeof(base) * 8; bit += NBITS) {
+	for (bit = hval = 0; base && bit < sizeof(base) * 8; bit += NBITS) {
 		hval ^= (int)base & (NHASH-1);
 		base >>= NBITS;
 	}
@@ -189,18 +189,18 @@ _bhash(
 }
 
 /*
- * Mapping of multi-page buffers into contingous virtual space
+ * Mapping of multi-page buffers into contiguous virtual space
  */
 
 STATIC void *pagebuf_mapout_locked(page_buf_t *);
 
-STATIC  spinlock_t              as_lock = SPIN_LOCK_UNLOCKED;
 typedef struct a_list {
 	void		*vm_addr;
 	struct a_list	*next;
 } a_list_t;
 STATIC a_list_t		*as_free_head;
 STATIC int		as_list_len;
+STATIC spinlock_t	as_lock = SPIN_LOCK_UNLOCKED;
 
 
 /*