From 1ff26009b310cd26df3667b58b8fed27f7891669 Mon Sep 17 00:00:00 2001 From: Stefan Behrens Date: Wed, 26 Jun 2013 17:17:58 +0200 Subject: [PATCH] Btrfs-progs: add uuid_tree_gen field to btrfs-show-super Signed-off-by: Stefan Behrens Signed-off-by: David Sterba Signed-off-by: Chris Mason --- btrfs-show-super.c | 2 ++ ctree.h | 5 ++++- 2 files changed, 6 insertions(+), 1 deletion(-) diff --git a/btrfs-show-super.c b/btrfs-show-super.c index f587f106..c815469a 100644 --- a/btrfs-show-super.c +++ b/btrfs-show-super.c @@ -247,6 +247,8 @@ static void dump_superblock(struct btrfs_super_block *sb) (unsigned long long)btrfs_super_csum_size(sb)); printf("cache_generation\t%llu\n", (unsigned long long)btrfs_super_cache_generation(sb)); + printf("uuid_tree_generation\t%llu\n", + (unsigned long long)btrfs_super_uuid_tree_generation(sb)); uuid_unparse(sb->dev_item.uuid, buf); printf("dev_item.uuid\t\t%s\n", buf); diff --git a/ctree.h b/ctree.h index a7143d9e..704e9900 100644 --- a/ctree.h +++ b/ctree.h @@ -437,9 +437,10 @@ struct btrfs_super_block { char label[BTRFS_LABEL_SIZE]; __le64 cache_generation; + __le64 uuid_tree_generation; /* future expansion */ - __le64 reserved[31]; + __le64 reserved[30]; u8 sys_chunk_array[BTRFS_SYSTEM_CHUNK_ARRAY_SIZE]; struct btrfs_root_backup super_roots[BTRFS_NUM_BACKUP_ROOTS]; } __attribute__ ((__packed__)); @@ -1934,6 +1935,8 @@ BTRFS_SETGET_STACK_FUNCS(super_csum_type, struct btrfs_super_block, csum_type, 16); BTRFS_SETGET_STACK_FUNCS(super_cache_generation, struct btrfs_super_block, cache_generation, 64); +BTRFS_SETGET_STACK_FUNCS(super_uuid_tree_generation, struct btrfs_super_block, + uuid_tree_generation, 64); static inline int btrfs_super_csum_size(struct btrfs_super_block *s) {