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Re: wedge device to name



On 22.09.2019 15:39, Christos Zoulas wrote:
> In article <qlvug6$6lbg$1%blaine.gmane.org@localhost>,
> Christos Zoulas <christos%astron.com@localhost> wrote:
>> In article <qlvhpb$eq5$1%serpens.de@localhost>,
>> Michael van Elst <mlelstv%serpens.de@localhost> wrote:
>>> christos%astron.com@localhost (Christos Zoulas) writes:
>>>
>>>> I added that to df, but it needs root/operator in order to access the
>>>> device node to get wedge info. I also wrote a patch to expose the
>>>> wedge info via sysctl:
>>>
>>> Alternatives ?
>>>
>>> Expose via an enhanced statvfs() syscall. After all df is a user interface
>>> for that syscall. It would at least allow in theory to return a copy
>>> of the exact mount path.
>>
>> Yes, this is the first thing I thought. I will see how feasible it it.
> 
> I've implemented this but the patch is fairly long (due to the 4 syscalls
> that need to be versioned). Anyway it works, and once I get a successful
> build I will post the pstch here.
> 
> christos
> 

What's wrong with sysctl?

It works nicely and this use-case is not performance sensitive.

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