btrfs: fix unused variables in qgroup.c

Use otherwise unused local variables slot in update_qgroup_limit_item and
in update_qgroup_info_item, and remove unused variable ins from
btrfs_qgroup_account_ref.

Signed-off-by: Valentina Giusti <valentina.giusti@microon.de>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <clm@fb.com>

diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index 4e6ef490619e59b90fb64bf2cca251d6f11eae80..bd0b058f2a24b78b13291e37fdfb957cf7060297 100644 (file)
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -644,8 +644,7 @@ static int update_qgroup_limit_item(struct btrfs_trans_handle *trans,
 
        l = path->nodes[0];
        slot = path->slots[0];
-       qgroup_limit = btrfs_item_ptr(l, path->slots[0],
-                                     struct btrfs_qgroup_limit_item);
+       qgroup_limit = btrfs_item_ptr(l, slot, struct btrfs_qgroup_limit_item);
        btrfs_set_qgroup_limit_flags(l, qgroup_limit, flags);
        btrfs_set_qgroup_limit_max_rfer(l, qgroup_limit, max_rfer);
        btrfs_set_qgroup_limit_max_excl(l, qgroup_limit, max_excl);
@@ -687,8 +686,7 @@ static int update_qgroup_info_item(struct btrfs_trans_handle *trans,
 
        l = path->nodes[0];
        slot = path->slots[0];
-       qgroup_info = btrfs_item_ptr(l, path->slots[0],
-                                struct btrfs_qgroup_info_item);
+       qgroup_info = btrfs_item_ptr(l, slot, struct btrfs_qgroup_info_item);
        btrfs_set_qgroup_info_generation(l, qgroup_info, trans->transid);
        btrfs_set_qgroup_info_rfer(l, qgroup_info, qgroup->rfer);
        btrfs_set_qgroup_info_rfer_cmpr(l, qgroup_info, qgroup->rfer_cmpr);
@@ -1349,7 +1347,6 @@ int btrfs_qgroup_account_ref(struct btrfs_trans_handle *trans,
                             struct btrfs_delayed_ref_node *node,
                             struct btrfs_delayed_extent_op *extent_op)
 {
-       struct btrfs_key ins;
        struct btrfs_root *quota_root;
        u64 ref_root;
        struct btrfs_qgroup *qgroup;
@@ -1363,10 +1360,6 @@ int btrfs_qgroup_account_ref(struct btrfs_trans_handle *trans,
 
        BUG_ON(!fs_info->quota_root);
 
-       ins.objectid = node->bytenr;
-       ins.offset = node->num_bytes;
-       ins.type = BTRFS_EXTENT_ITEM_KEY;
-
        if (node->type == BTRFS_TREE_BLOCK_REF_KEY ||
            node->type == BTRFS_SHARED_BLOCK_REF_KEY) {
                struct btrfs_delayed_tree_ref *ref;