Re: [PATCH] null_blk: Fix zone reset all tracing

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On 2020/11/04 18:50, Greg Kroah-Hartman wrote:
> On Wed, Nov 04, 2020 at 09:31:40AM +0000, Damien Le Moal wrote:
>> On 2020/11/04 18:26, Greg Kroah-Hartman wrote:
>>> On Wed, Nov 04, 2020 at 09:21:27AM +0000, Damien Le Moal wrote:
>>>> On 2020/11/04 18:14, Greg Kroah-Hartman wrote:
>>>>> On Wed, Nov 04, 2020 at 10:10:15AM +0100, Greg Kroah-Hartman wrote:
>>>>>> On Wed, Nov 04, 2020 at 02:29:14PM +0900, Damien Le Moal wrote:
>>>>>>> commit f9c9104288da543cd64f186f9e2fba389f415630 upstream.
>>>>>>>
>>>>>>> In the cae of the REQ_OP_ZONE_RESET_ALL operation, the command sector is
>>>>>>> ignored and the operation is applied to all sequential zones. For these
>>>>>>> commands, tracing the effect of the command using the command sector to
>>>>>>> determine the target zone is thus incorrect.
>>>>>>>
>>>>>>> Fix null_zone_mgmt() zone condition tracing in the case of
>>>>>>> REQ_OP_ZONE_RESET_ALL to apply tracing to all sequential zones that are
>>>>>>> not already empty.
>>>>>>>
>>>>>>> Fixes: 766c3297d7e1 ("null_blk: add trace in null_blk_zoned.c")
>>>>>>> Signed-off-by: Damien Le Moal <damien.lemoal@xxxxxxx>
>>>>>>> Cc: stable@xxxxxxxxxxxxxxx
>>>>>>> Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>
>>>>>>> ---
>>>>>>>  drivers/block/null_blk_zoned.c | 14 ++++++++------
>>>>>>>  1 file changed, 8 insertions(+), 6 deletions(-)
>>>>>>
>>>>>> Now queued up, thanks.
>>>>>
>>>>> Wait, no, I'll delay this one until the next round as it's not fixing
>>>>> something introduced in this -rc series.
>>>>
>>>> Yes, that problem is older.
>>>> The lock fix I sent goes on top of this one though. I can send the backport for
>>>> the lock fix without this patch applied. Is that OK ?
>>>
>>> If the order of the patches is needed, then yes, I can take both, please
>>> submit them as a patch series so that I know this is needed.
>>
>> OK. Sending that. Note that I still do not see Kanchan patch applied in stable
>> 5.9.y branch, so I will do the backport assuming it is applied. Or I can send
>> all 3 patches as the series. Which do you prefer ?
> 
> All 3 is great, to ensure I have them all as I don't know what you mean
> by "Kanchan patch".

I was talking about "
commit 35bc10b2eafbb701064b94f283b77c54d3304842 upstream." that you already
applied to 5.9.y.

Sending all 3 patches backported in a series to be sure. SInce the first patchin
the series will be the above mentioned patch, everything should still apply
cleanly on your side. Thanks!

> 
> thanks,
> 
> greg k-h
> 


-- 
Damien Le Moal
Western Digital Research




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