Btrfs: remove unused argument from select_reloc_root()

@nr is no longer used, remove it from select_reloc_root()

Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>

diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index 8cf99c4..277b8e3 100644 (file)
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -2454,7 +2454,7 @@ static noinline_for_stack
 struct btrfs_root *select_reloc_root(struct btrfs_trans_handle *trans,
                                     struct reloc_control *rc,
                                     struct backref_node *node,
-                                    struct backref_edge *edges[], int *nr)
+                                    struct backref_edge *edges[])
 {
        struct backref_node *next;
        struct btrfs_root *root;
@@ -2496,7 +2496,6 @@ struct btrfs_root *select_reloc_root(struct btrfs_trans_handle *trans,
        if (!root)
                return NULL;
 
-       *nr = index;
        next = node;
        /* setup backref node path for btrfs_reloc_cow_block */
        while (1) {
@@ -2643,7 +2642,6 @@ static int do_relocation(struct btrfs_trans_handle *trans,
        u32 blocksize;
        u64 bytenr;
        u64 generation;
-       int nr;
        int slot;
        int ret;
        int err = 0;
@@ -2656,7 +2654,7 @@ static int do_relocation(struct btrfs_trans_handle *trans,
                cond_resched();
 
                upper = edge->node[UPPER];
-               root = select_reloc_root(trans, rc, upper, edges, &nr);
+               root = select_reloc_root(trans, rc, upper, edges);
                BUG_ON(!root);
 
                if (upper->eb && !upper->locked) {