btrfs: define SUPER_FLAG_METADUMP_V2

btrfs-progs uses super flag bit BTRFS_SUPER_FLAG_METADUMP_V2 (1ULL << 34). So just define that in kernel so that we know its been used. Signed-off-by: Anand Jain <anand.jain@oracle.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
gibsson · Jan 22, 2018 · e2731e5 · e2731e5
1 parent a6f93c7
commit e2731e5
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diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
@@ -61,7 +61,8 @@
 				 BTRFS_HEADER_FLAG_RELOC |\
 				 BTRFS_SUPER_FLAG_ERROR |\
 				 BTRFS_SUPER_FLAG_SEEDING |\
-				 BTRFS_SUPER_FLAG_METADUMP)
+				 BTRFS_SUPER_FLAG_METADUMP |\
+				 BTRFS_SUPER_FLAG_METADUMP_V2)
 
 static const struct extent_io_ops btree_extent_io_ops;
 static void end_workqueue_fn(struct btrfs_work *work);

diff --git a/include/uapi/linux/btrfs_tree.h b/include/uapi/linux/btrfs_tree.h
@@ -456,6 +456,7 @@ struct btrfs_free_space_header {
 
 #define BTRFS_SUPER_FLAG_SEEDING	(1ULL << 32)
 #define BTRFS_SUPER_FLAG_METADUMP	(1ULL << 33)
+#define BTRFS_SUPER_FLAG_METADUMP_V2	(1ULL << 34)
 
 
 /*
-Original file line number
+Diff line change
@@ Expand Up / @@ -456,6 +456,7 @@ struct btrfs_free_space_header { @@
     #define BTRFS_SUPER_FLAG_SEEDING	(1ULL << 32)
     #define BTRFS_SUPER_FLAG_METADUMP	(1ULL << 33)
+    #define BTRFS_SUPER_FLAG_METADUMP_V2	(1ULL << 34)
     /*
@@ Expand Down @@