Re: [PATCH 0/5] btrfs-find-root enhancement for chunk tree corrupted fs

[Qu Wenruo <quwenruo@cn.fujitsu.com>]

David Sterba wrote on 2016/02/24 13:38 +0100:
> On Mon, Feb 22, 2016 at 02:59:52PM +0800, Qu Wenruo wrote:
>> Before this patchset, btrfs-find-root needs valid chunk tree from the
>> fs.
>> However for chunk root corrupted case, btrfs-find-root is of no use due
>> to above limitation.
>>
>> This patchset will allow open_ctree_fs_info() to return a fs_info
>> without any valid tree root, but system chunk map from superblock only.
>> And modify btrfs-find-root along with some infrastructure to do chunk
>> root search.
>>
>> Also fix an old bug where btrfs-find-root will always skip the first
>> chunk, with its corresponding regression test.
>>
>> This also provides the basis for later "btrfsck --chunk-root" and faster
>> chunk-recovery enhancement.
>>
>> Qu Wenruo (5):
>>    btrfs: volume: Fix a bug causing btrfs-find-root to skip first chunk
>>    btrfs: Allow open_ctree to return fs_info even chunk tree is corrupted
>>    btrfs: Add support for tree block operations on fs_info without roots.
>>    btrfs: find-root: Allow btrfs-find-root to search chunk root even
>>      chunk     root is corrupted
>>    btrfs: misc-test: Add regression test for find-root gives empty result
>
> All applied, with minor adjustments. I'm not going to point them out
> in the mails, please make a diff against your branch to see.
>
>
Thanks for the modification.
It's completely OK.

Thanks,
Qu