ocfs2/trivial: Code cleanup for allocation reservation.

Two tiny cleanup for allocation reservation.
1. Remove some extra codes in ocfs2_local_alloc_find_clear_bits.
2. Remove an unuseful variables in ocfs2_find_resv_lhs.

Signed-off-by: Tao Ma <tao.ma@oracle.com>
Acked-by: Mark Fasheh <mfasheh@suse.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>

fs/ocfs2/localalloc.c

@@ -879,13 +879,10 @@ static int ocfs2_local_alloc_find_clear_bits(struct ocfs2_super *osb,
 	mlog(0, "Exiting loop, bitoff = %d, numfound = %d\n", bitoff,
 	     numfound);
 
-	if (numfound == *numbits) {
+	if (numfound == *numbits)
 		bitoff = startoff - numfound;
-		*numbits = numfound;
-	} else {
-		numfound = 0;
+	else
 		bitoff = -1;
-	}
 
 bail:
 	if (local_resv)

fs/ocfs2/reservations.c

@@ -371,7 +371,6 @@ ocfs2_find_resv_lhs(struct ocfs2_reservation_map *resmap, unsigned int goal)
 	struct ocfs2_alloc_reservation *resv = NULL;
 	struct ocfs2_alloc_reservation *prev_resv = NULL;
 	struct rb_node *node = resmap->m_reservations.rb_node;
-	struct rb_node *prev = NULL;
 
 	assert_spin_locked(&resv_lock);
 
@@ -392,7 +391,6 @@ ocfs2_find_resv_lhs(struct ocfs2_reservation_map *resmap, unsigned int goal)
 		}
 
 		prev_resv = resv;
-		prev = node;
 		node = rb_next(node);
 	}