On 23.04.2018 17:16, David Sterba wrote:
> On Mon, Apr 23, 2018 at 05:32:04PM +0800, Qu Wenruo wrote:
>> Commit 581c1760415c ("btrfs: Validate child tree block's level and first
>> key") introduced new @first_key parameter for read_tree_block(), however
>> caller in replace_path() is parasing wrong key to read_tree_block().
>>
>> It should use parameter @first_key other than @key.
>>
>> Normally it won't expose problem as @key is normally initialzied to the
>> same value of @first_key we expect.
>> However in relocation recovery case, @key can be set to (0, 0, 0), and
>> since no valid key in relocation tree can be (0, 0, 0), it will cause
>> read_tree_block() to return -EUCLEAN and interrupt relocation recovery.
>>
>> Fix it by setting @first_key correctly.
>>
>> Signed-off-by: Qu Wenruo <w...@suse.com>
>
> Added to next, thanks.
This is actually -rc2 material, right?
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