btrfs: remove inode argument from add_pending_csums

It's used to reference the csum root which can be done from the trans
handle as well. Simplify the signature and while at it also remove the
noinline attribute as the function uses only at most 16 bytes of stack
space.
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

fs/btrfs/inode.c

@@ -2246,16 +2246,15 @@ static blk_status_t btrfs_submit_bio_hook(struct inode *inode, struct bio *bio,
  * given a list of ordered sums record them in the inode.  This happens
  * at IO completion time based on sums calculated at bio submission time.
  */
-static noinline int add_pending_csums(struct btrfs_trans_handle *trans,
-			     struct inode *inode, struct list_head *list)
+static int add_pending_csums(struct btrfs_trans_handle *trans,
+			     struct list_head *list)
 {
 	struct btrfs_ordered_sum *sum;
 	int ret;
 
 	list_for_each_entry(sum, list, list) {
 		trans->adding_csums = true;
-		ret = btrfs_csum_file_blocks(trans,
-		       BTRFS_I(inode)->root->fs_info->csum_root, sum);
+		ret = btrfs_csum_file_blocks(trans, trans->fs_info->csum_root, sum);
 		trans->adding_csums = false;
 		if (ret)
 			return ret;
@@ -2683,7 +2682,7 @@ static int btrfs_finish_ordered_io(struct btrfs_ordered_extent *ordered_extent)
 		goto out;
 	}
 
-	ret = add_pending_csums(trans, inode, &ordered_extent->list);
+	ret = add_pending_csums(trans, &ordered_extent->list);
 	if (ret) {
 		btrfs_abort_transaction(trans, ret);
 		goto out;