From: Goldwyn Rodrigues
While free'ing qgroup->reserved resources, we much check if
the page has not been invalidated by a truncate operation
by checking if the page is still dirty before reducing the
qgroup resources. Resources in such a case are free'd when
the entire extent
At 09/30/2016 10:18 AM, Qu Wenruo wrote:
Your original fix is good.
Feel free to my tag after enriching the comment in btrfs_invalidatepage().
Feel free to "add" my tag...
Reviewed-by: Qu Wenruo
Thanks again for your founding and sorry for the extra time
Your original fix is good.
Feel free to my tag after enriching the comment in btrfs_invalidatepage().
Reviewed-by: Qu Wenruo
Thanks again for your founding and sorry for the extra time reviewing.
Thanks
Qu
At 09/29/2016 07:13 PM, Goldwyn Rodrigues wrote:
On
At 09/29/2016 07:13 PM, Goldwyn Rodrigues wrote:
On 09/29/2016 03:57 AM, Qu Wenruo wrote:
Thanks for your test script.
I succeeded in pinning down the problem.
The problem is, btrfs is invalidate pages that belongs to ordered
extent(goes through writeback)
No, I don't think invalidated
On 09/29/2016 03:57 AM, Qu Wenruo wrote:
> Thanks for your test script.
>
> I succeeded in pinning down the problem.
>
> The problem is, btrfs is invalidate pages that belongs to ordered
> extent(goes through writeback)
No, I don't think invalidated pages are going through writeback. The
Thanks for your test script.
I succeeded in pinning down the problem.
The problem is, btrfs is invalidate pages that belongs to ordered
extent(goes through writeback)
The ftrace(with more tracepoints to trace qgroup->reserved change) shows:
--
btrfs_qgroup_release_data: root=257,
On 09/27/2016 08:44 PM, Qu Wenruo wrote:
> Finally reproduced it.
>
> Although in a low chance, about 1/10.
>
> Under most case, the final remove gets executed without error.
Change 50m to 500m while setting the qgroup limit, the probability will
increase.
--
Goldwyn
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At 09/27/2016 10:04 PM, Goldwyn Rodrigues wrote:
On 09/26/2016 10:10 PM, Qu Wenruo wrote:
At 09/26/2016 10:31 PM, Goldwyn Rodrigues wrote:
On 09/25/2016 09:33 PM, Qu Wenruo wrote:
At 09/23/2016 09:43 PM, Goldwyn Rodrigues wrote:
[snipped]
Sorry I still don't get the point.
On 09/26/2016 10:10 PM, Qu Wenruo wrote:
>
>
> At 09/26/2016 10:31 PM, Goldwyn Rodrigues wrote:
>>
>>
>> On 09/25/2016 09:33 PM, Qu Wenruo wrote:
>>>
>>>
>>> At 09/23/2016 09:43 PM, Goldwyn Rodrigues wrote:
> [snipped]
>>>
>>> Sorry I still don't get the point.
>>> Would you please
At 09/26/2016 10:31 PM, Goldwyn Rodrigues wrote:
On 09/25/2016 09:33 PM, Qu Wenruo wrote:
At 09/23/2016 09:43 PM, Goldwyn Rodrigues wrote:
[snipped]
Sorry I still don't get the point.
Would you please give a call flow of the timing dirtying page and
calling
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