diff --git a/Documentation/mkfs.btrfs.asciidoc b/Documentation/mkfs.btrfs.asciidoc
index b167fa40..1082b871 100644
--- a/Documentation/mkfs.btrfs.asciidoc
+++ b/Documentation/mkfs.btrfs.asciidoc
@@ -317,11 +317,11 @@ There are the following block group types available:
       ^.^h| Copies   ^.^h| Parity     ^.<h| Striping
 | single  | 1            |                |            |        100% | 1/any
 | DUP     | 2 / 1 device |                |            |         50% | 1/any ^(see note 1)^
-| RAID0   |              |                | 1 to N     |        100% | 2/any
+| RAID0   |              |                | 1 to N     |        100% | 1/any ^(see note 5)^
 | RAID1   | 2            |                |            |         50% | 2/any
 | RAID1C3 | 3            |                |            |         33% | 3/any
 | RAID1C4 | 4            |                |            |         25% | 4/any
-| RAID10  | 2            |                | 1 to N     |         50% | 4/any
+| RAID10  | 2            |                | 1 to N     |         50% | 2/any ^(see note 5)^
 | RAID5   | 1            | 1              | 2 to N-1   |     (N-1)/N | 2/any ^(see note 2)^
 | RAID6   | 1            | 2              | 3 to N-2   |     (N-2)/N | 3/any ^(see note 3)^
 |=============================================================
@@ -344,6 +344,9 @@ want to get effectively 3 copies in a RAID1-like manner (but not exactly that).
 'Note 4:' Since kernel 5.5 it's possible to use RAID1C3 as replacement for
 RAID6, higher space cost but reliable.
 
+'Note 5:' Since kernel 5.15 it's possible to use (mount, convert profiles)
+RAID0 on one device and RAID10 on two devices.
+
 PROFILE LAYOUT
 ~~~~~~~~~~~~~~
 
diff --git a/common/utils.c b/common/utils.c
index 7e213146..418001af 100644
--- a/common/utils.c
+++ b/common/utils.c
@@ -731,10 +731,10 @@ int test_num_disk_vs_raid(u64 metadata_profile, u64 data_profile,
 		/* fallthrough */
 	case 2:
 		allowed |= BTRFS_BLOCK_GROUP_RAID0 | BTRFS_BLOCK_GROUP_RAID1 |
-			BTRFS_BLOCK_GROUP_RAID5;
+			BTRFS_BLOCK_GROUP_RAID5 | BTRFS_BLOCK_GROUP_RAID10;
 		/* fallthrough */
 	case 1:
-		allowed |= BTRFS_BLOCK_GROUP_DUP;
+		allowed |= BTRFS_BLOCK_GROUP_DUP | BTRFS_BLOCK_GROUP_RAID0;
 	}
 
 	if (dev_cnt > 1 && profile & BTRFS_BLOCK_GROUP_DUP) {
diff --git a/ioctl.h b/ioctl.h
index 9e1e3403..5ce47c83 100644
--- a/ioctl.h
+++ b/ioctl.h
@@ -803,7 +803,7 @@ static inline char *btrfs_err_str(enum btrfs_err_code err_code)
 		case BTRFS_ERROR_DEV_RAID1C4_MIN_NOT_MET:
 			return "unable to go below four devices on raid1c4";
 		case BTRFS_ERROR_DEV_RAID10_MIN_NOT_MET:
-			return "unable to go below four devices on raid10";
+			return "unable to go below four/two devices on raid10";
 		case BTRFS_ERROR_DEV_RAID5_MIN_NOT_MET:
 			return "unable to go below two devices on raid5";
 		case BTRFS_ERROR_DEV_RAID6_MIN_NOT_MET:
diff --git a/kernel-shared/volumes.c b/kernel-shared/volumes.c
index 26d197b5..431fb744 100644
--- a/kernel-shared/volumes.c
+++ b/kernel-shared/volumes.c
@@ -36,7 +36,7 @@ const struct btrfs_raid_attr btrfs_raid_array[BTRFS_NR_RAID_TYPES] = {
 		.sub_stripes	= 2,
 		.dev_stripes	= 1,
 		.devs_max	= 0,	/* 0 == as many as possible */
-		.devs_min	= 4,
+		.devs_min	= 2,
 		.tolerated_failures = 1,
 		.devs_increment	= 2,
 		.ncopies	= 2,
@@ -101,7 +101,7 @@ const struct btrfs_raid_attr btrfs_raid_array[BTRFS_NR_RAID_TYPES] = {
 		.sub_stripes	= 1,
 		.dev_stripes	= 1,
 		.devs_max	= 0,
-		.devs_min	= 2,
+		.devs_min	= 1,
 		.tolerated_failures = 0,
 		.devs_increment	= 1,
 		.ncopies	= 1,