Re: [PATCH 2/2] NFS: drop unused nfs_direct_req bytes_left

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 16 Nov 2023, at 17:11, Anna Schumaker wrote:

> On Thu, Nov 16, 2023 at 5:03 PM Benjamin Coddington <bcodding@xxxxxxxxxx> wrote:
>>
>> On 16 Nov 2023, at 16:44, Anna Schumaker wrote:
>>
>>> Hi Ben,
>>>
>>> On Wed, Nov 15, 2023 at 4:34 PM Benjamin Coddington <bcodding@xxxxxxxxxx> wrote:
>>>>
>>>> Now that we're calculating how large a remaining IO should be based
>>>> on the current request's offset, we no longer need to track bytes_left on
>>>> each struct nfs_direct_req.  Drop the field, and clean up the direct
>>>> request tracepoints.
>>>
>>> I've been having problems with xfstests generic/465 on all NFS
>>> versions after applying this patch. Looking at wireshark, the client
>>> appears to be resending the same reads over and over again. Have you
>>> seen anything like this in your testing?
>>
>> I have generic/465 failing before and after these two patches on pNFS SCSI..
>> but at least it completes.  If I run it without pNFS I can see the same
>> thing.. it just sends the same reads over and over.  I'll figure out why.
>
> Thanks! I have it failing normally as well, so that's expected. It's
> the hanging forever that's not :)

The direct read is returning 0 when there's data on the device.

Oh, the problem is probably that patch drops the update of dreq->max_count,
which I overlooked because of the double assignment.  Shame on me.

Ben




[Index of Archives]     [Linux Filesystem Development]     [Linux USB Development]     [Linux Media Development]     [Video for Linux]     [Linux NILFS]     [Linux Audio Users]     [Yosemite Info]     [Linux SCSI]

  Powered by Linux