commit 593060d756e0c2382d59cf00d5f3b9e3a336c408
author Chris Mason <chris.mason@oracle.com> Tue Mar 25 16:50:33 2008 -0400
committer Chris Mason <chris.mason@oracle.com> Thu Sep 25 11:04:01 2008 -0400
tree c102f8abd9210eeba8ae4e7f6626b80cfed1b8d8
parent 8a4b83cc8bd75fca29ac68615896d9e92820e7c2

Btrfs: Implement raid0 when multiple devices are present

Signed-off-by: Chris Mason <chris.mason@oracle.com>

fs/btrfs/ctree.h

diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 7556f83..f43dfe7 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -413,6 +413,7 @@
 #define BTRFS_BLOCK_GROUP_DATA     (1 << 0)
 #define BTRFS_BLOCK_GROUP_SYSTEM   (1 << 1)
 #define BTRFS_BLOCK_GROUP_METADATA (1 << 2)
+#define BTRFS_BLOCK_GROUP_RAID0    (1 << 3)
 
 
 struct btrfs_block_group_item {
@@ -498,6 +499,8 @@
 	u64 delalloc_bytes;
 	u64 last_alloc;
 	u64 last_data_alloc;
+	int extra_data_alloc_bits;
+	int extra_alloc_bits;
 };
 
 /*