1 files changed, 35 insertions, 0 deletions
diff --git a/meta/recipes-devtools/btrfs-tools/btrfs-tools/upstream-for-dragonn/0002-Check-for-RAID10-in-set_avail_alloc_bits.patch b/meta/recipes-devtools/btrfs-tools/btrfs-tools/upstream-for-dragonn/0002-Check-for-RAID10-in-set_avail_alloc_bits.patch
new file mode 100644
index 0000000000..c8557f7863
--- /dev/null
+++ b/meta/recipes-devtools/btrfs-tools/btrfs-tools/upstream-for-dragonn/0002-Check-for-RAID10-in-set_avail_alloc_bits.patch
@@ -0,0 +1,35 @@
+Upstream-Status: Inappropriate [Backport]
+From 454a0538680bc17656cefadef1f167917ea0b856 Mon Sep 17 00:00:00 2001
+From: Chris Mason <chris.mason@oracle.com>
+Date: Wed, 15 Dec 2010 16:02:45 -0500
+Subject: [PATCH 2/5] Check for RAID10 in set_avail_alloc_bits
+
+When raid is setup with mkfs, it is supposed to cow the initial filesystem
+it creates up to the desired raid level.  RAID10 was not in the list
+of RAID levels it checked for, so the initial FS created for RAID10
+actually only lived on the first disk.
+
+This works well enough because all the roots get quickly cowed during the
+first mount.  The exception is the data relocation tree, which only gets
+cowed when we do a balance.
+
+Signed-off-by: Chris Mason <chris.mason@oracle.com>
+---
+ extent-tree.c |    1 +
+ 1 files changed, 1 insertions(+), 0 deletions(-)
+
+diff --git a/extent-tree.c b/extent-tree.c
+index b2f9bb2..108933f 100644
+--- a/extent-tree.c
++++ b/extent-tree.c
+@@ -1775,6 +1775,7 @@ static void set_avail_alloc_bits(struct btrfs_fs_info *fs_info, u64 flags)
+ {
+ 	u64 extra_flags = flags & (BTRFS_BLOCK_GROUP_RAID0 |
+ 				   BTRFS_BLOCK_GROUP_RAID1 |
++				   BTRFS_BLOCK_GROUP_RAID10 |
+ 				   BTRFS_BLOCK_GROUP_DUP);
+ 	if (extra_flags) {
+ 		if (flags & BTRFS_BLOCK_GROUP_DATA)
+-- 
+1.7.2.3
+