Re: FAILED: patch "[PATCH] Btrfs: fix regression running delayed references when using" failed to apply to 4.2-stable tree

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On 12/12/2015 09:43 PM, Greg KH wrote:
> On Sat, Dec 12, 2015 at 09:35:45PM +0000, Filipe Manana wrote:
>>
>>
>> On 12/12/2015 08:03 PM, Greg KH wrote:
>>> On Sat, Dec 12, 2015 at 11:57:49AM -0800, Greg KH wrote:
>>>> On Sat, Dec 12, 2015 at 02:32:10PM +0000, Filipe Manana wrote:
>>>>>
>>>>>
>>>>> On 12/11/2015 04:54 PM, gregkh@xxxxxxxxxxxxxxxxxxx wrote:
>>>>>>
>>>>>> The patch below does not apply to the 4.2-stable tree.
>>>>>> If someone wants it applied there, or to any other stable or longterm
>>>>>> tree, then please email the backport, including the original git commit
>>>>>> id to <stable@xxxxxxxxxxxxxxx>.
>>>>>
>>>>> Greg, please find attached a version of the patch that applies against
>>>>> 4.2.7.
>>>>
>>>> This patch breaks the build:
>>
>> I did build and tested it (in reply to your next comment about sending
>> untested stuff).
>> See comment inlined below.
>>
>>>>
>>>> fs/btrfs/delayed-ref.c: In function ‘merge_ref’:
>>>> fs/btrfs/delayed-ref.c:223:38: error: ‘struct btrfs_delayed_ref_node’ has no mem
>>>> ber named ‘no_quota’
>>>>    if (next->type != ref->type || next->no_quota != ref->no_quota)
>>
>> I don't get why you're getting that error.
>> struct btrfs_delayed_ref_node has a member named 'no_quota':
>>
>> https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/tree/fs/btrfs/delayed-ref.h?id=refs/tags/v4.2.7#n36
>>
>> https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/tree/fs/btrfs/delayed-ref.h?id=refs/tags/v4.2.7#n71
>>
>> Am I missing something?
>>
>> I think you applied 2 patches in the wrong order. You should apply the
>> following two in this order:
>>
>> 1) "Btrfs: fix regression when running delayed references" -
>> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2c3cf7d5f6105bb957df125dfce61d4483b8742d
>>
>> 2) "Btrfs: fix regression running delayed references when using qgroups"
>> -
>> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b06c4bf5c874a57254b197f53ddf588e7a24a2bf
>>
>> Please confirm if you applied those 2 in that specific order, because it
>> doesn't seem so. The first one adds code that still uses member
>> "no_quota" while the second one removes the "no_quota" member from that
>> struct.
> 
> You only sent me one patch, one for both trees.  I built the tree after
> applying what I had from you.
> 
> If you need/want me to apply 2 patches, please send both of them, can
> you do so for the -rc kernels I just released?

I didn't send both patches because for the first one there wasn't any
complain about it not applying cleanly to the 4.2 and 4.3 trees. So I
only sent the second one, since that was the only one that didn't apply
cleanly.

Ok, I'll do it again, based on those rcs, and send you both patches for
both stable releases. Where are those rc branches?

thanks

> 
> thanks,
> 
> greg k-h
> 
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