btrfs: rename btrfs_update_iflags to reflect which flags it touches

The btrfs inode flag flavour is now simply called 'inode flags' and the
vfs inode are i_flags.

Signed-off-by: David Sterba <dsterba@suse.com>
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index bfa9669..71aecf0 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -3249,7 +3249,7 @@
 long btrfs_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
 long btrfs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
 int btrfs_ioctl_get_supported_features(void __user *arg);
-void btrfs_update_iflags(struct inode *inode);
+void btrfs_sync_inode_flags_to_i_flags(struct inode *inode);
 int btrfs_is_empty_uuid(u8 *uuid);
 int btrfs_defrag_file(struct inode *inode, struct file *file,
 		      struct btrfs_ioctl_defrag_range_args *range,
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 766bd28..cbcda4e 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -3929,7 +3929,7 @@
 		break;
 	}
 
-	btrfs_update_iflags(inode);
+	btrfs_sync_inode_flags_to_i_flags(inode);
 	return 0;
 
 make_bad:
@@ -6458,7 +6458,7 @@
 			BTRFS_I(inode)->flags |= BTRFS_INODE_NODATASUM;
 	}
 
-	btrfs_update_iflags(inode);
+	btrfs_sync_inode_flags_to_i_flags(inode);
 }
 
 static struct inode *btrfs_new_inode(struct btrfs_trans_handle *trans,
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 48e2ddf..47e7e28 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -136,7 +136,7 @@
 /*
  * Update inode->i_flags based on the btrfs internal flags.
  */
-void btrfs_update_iflags(struct inode *inode)
+void btrfs_sync_inode_flags_to_i_flags(struct inode *inode)
 {
 	struct btrfs_inode *ip = BTRFS_I(inode);
 	unsigned int new_fl = 0;
@@ -317,7 +317,7 @@
 		goto out_drop;
 	}
 
-	btrfs_update_iflags(inode);
+	btrfs_sync_inode_flags_to_i_flags(inode);
 	inode_inc_iversion(inode);
 	inode->i_ctime = current_time(inode);
 	ret = btrfs_update_inode(trans, root, inode);