[PATCH 4.9 05/31] btrfs: define SUPER_FLAG_METADUMP_V2

4.9-stable review patch. If anyone has any objections, please let me know. -- From: Anand Jain commit e2731e55884f2138a252b0a3d7b24d57e49c3c59 upstream. btrfs-progs uses super flag bit BTRFS_SUPER_FLAG_METADUMP_V2 (1ULL << 34). So just define that in kernel so that we know

[PATCH 4.9 05/31] btrfs: define SUPER_FLAG_METADUMP_V2

4.9-stable review patch. If anyone has any objections, please let me know. -- From: Anand Jain commit e2731e55884f2138a252b0a3d7b24d57e49c3c59 upstream. btrfs-progs uses super flag bit BTRFS_SUPER_FLAG_METADUMP_V2 (1ULL << 34). So just define that in kernel so that we know