diff options
| author | Qu Wenruo <wqu@suse.com> | 2018-10-04 14:02:13 +0800 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2018-10-31 18:24:13 +0100 |
| commit | d59e19ca0786be2b415ca342b0fab5f222ecb702 (patch) | |
| tree | b825b3ce29d0d058fc62c158ee550214d31e3df4 /image | |
| parent | bf60039cbed6228b94341e2faba326608d4b2093 (diff) | |
btrfs-progs: image: Warn about log tree generation mismatch when restoring
At restore time, btrfs-image will try to fixup dev extents, this will
trigger a transaction.
It's normally OK to start a new transaction, but for an image with log
tree, a new transaction will increment generation, and log tree generation
will not match super block generation + 1.
There is no good way to solve it yet. Just output a warning for now.
Signed-off-by: Qu Wenruo <wqu@suse.com>
[ update error message ]
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'image')
| -rw-r--r-- | image/main.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/image/main.c b/image/main.c index 351c5a25..5b0050a0 100644 --- a/image/main.c +++ b/image/main.c @@ -2093,6 +2093,10 @@ static int fixup_devices(struct btrfs_fs_info *fs_info, u64 devid, cur_devid; int ret; + if (btrfs_super_log_root(fs_info->super_copy)) { + warning( + "log tree detected, its generation will not match superblock"); + } trans = btrfs_start_transaction(fs_info->tree_root, 1); if (IS_ERR(trans)) { error("cannot starting transaction %ld", PTR_ERR(trans)); |