btrfs: pass a btrfs_inode to btrfs_ioctl_send()

Pass a struct btrfs_inode to btrfs_ioctl_send() and _btrfs_ioctl_send()
as it's an internal interface, allowing to remove some use of BTRFS_I.

Reviewed-by: Boris Burkov <[e-mail]>
Signed-off-by: David Sterba <[e-mail]>

fs/btrfs/ioctl.c

···
 	return ret;
 }
 
-static int _btrfs_ioctl_send(struct inode *inode, void __user *argp, bool compat)
+static int _btrfs_ioctl_send(struct btrfs_inode *inode, void __user *argp, bool compat)
 {
 	struct btrfs_ioctl_send_args *arg;
 	int ret;
···
 		return btrfs_ioctl_set_received_subvol_32(file, argp);
 #endif
 	case BTRFS_IOC_SEND:
-		return _btrfs_ioctl_send(inode, argp, false);
+		return _btrfs_ioctl_send(BTRFS_I(inode), argp, false);
 #if defined(CONFIG_64BIT) && defined(CONFIG_COMPAT)
 	case BTRFS_IOC_SEND_32:
-		return _btrfs_ioctl_send(inode, argp, true);
+		return _btrfs_ioctl_send(BTRFS_I(inode), argp, true);
 #endif
 	case BTRFS_IOC_GET_DEV_STATS:
 		return btrfs_ioctl_get_dev_stats(fs_info, argp);

fs/btrfs/send.c

···
 		      btrfs_root_id(root), root->dedupe_in_progress);
 }
 
-long btrfs_ioctl_send(struct inode *inode, const struct btrfs_ioctl_send_args *arg)
+long btrfs_ioctl_send(struct btrfs_inode *inode, const struct btrfs_ioctl_send_args *arg)
 {
 	int ret = 0;
-	struct btrfs_root *send_root = BTRFS_I(inode)->root;
+	struct btrfs_root *send_root = inode->root;
 	struct btrfs_fs_info *fs_info = send_root->fs_info;
 	struct btrfs_root *clone_root;
 	struct send_ctx *sctx = NULL;

fs/btrfs/send.h

···
 #include <linux/sizes.h>
 #include <linux/align.h>
 
-struct inode;
+struct btrfs_inode;
 struct btrfs_ioctl_send_args;
 
 #define BTRFS_SEND_STREAM_MAGIC "btrfs-stream"
···
 	__BTRFS_SEND_A_MAX		= 35,
 };
 
-long btrfs_ioctl_send(struct inode *inode, const struct btrfs_ioctl_send_args *arg);
+long btrfs_ioctl_send(struct btrfs_inode *inode, const struct btrfs_ioctl_send_args *arg);
 
 #endif