[Ocfs2-devel] [PATCH 1/1] OCFS2: Log -EIO errors just when hit them.

[Wengang Wang <wen.gang.wang@oracle.com>]

Hi,

I noticed ocfs2_end_buffer_io_sync() is only for 1.2
need to do something for 1.4

regards,
wengang.

Wengang Wang wrote:
> Hi Sunil and Joel,
>
> For the EIO log problem, ocfs2_end_buffer_io_sync() is used as the 
> callback function b_end_io
> for both READ and WRITE.
> I noticed that in this function,
>
> if (!uptodate)
>     mlog_errno(-EIO);
>
> Isn't the 2 lines enough to log EIO errors?
>
> regards,
> wengang.
>
> Sunil Mushran wrote:
>   
>> I imagine this is for the unlogged EIOs that have been reported.
>>
>> From my scan, at least in mainline, all these EIOs are being logged
>> by the caller. So this patch is not adding any value. Can you double
>> check that please?
>>
>> Now it could be that the reported EIOs are on 1.2/1.4 and that those
>> trees are missing the mlogs. In that case, the patch should be specific
>> to the tree.
>>
>> BTW, the (u64) should be (unsigned long long). This ensures that
>> it compiles warning free on all arches.
>>
>>     
>
>
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