Re: [PATCH] lsm,io_uring: add LSM hooks to for the new uring_cmd file op

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On 7/15/22 3:16 PM, Casey Schaufler wrote:
> On 7/15/2022 1:00 PM, Jens Axboe wrote:
>> I agree that it should've been part of the initial series. As mentioned
>> above, I wasn't much apart of that earlier discussion in the series, and
>> hence missed that it was missing. And as also mentioned, LSM isn't much
>> on my radar as nobody I know uses it.
> 
> There are well over 6 Billion systems deployed in the wild that use LSM.
> Every Android device. Every Samsung TV, camera and watch. Chromebooks.
> Data centers. AWS. HPC. Statistically, a system that does not use LSM is
> extremely rare. The only systems that *don't* use LSM are the ones hand
> configured by Linux developers for their own use.

I'm not talking about systems that only I use, but I believe you that
it's in wide use. Didn't mean to imply that it isn't, just that since I
don't come across it in my work or the people/systems that I've worked
with, it hasn't been much on my radar and nobody has asked for it.

>>  This will cause oversights, even
>> if they are unfortunate. My point is just that no ill intent should be
>> assumed here.
> 
> I see no ill intent. And io_uring addresses an important issue.
> It just needs to work for the majority of Linux systems, not just
> the few that don't use LSM.

Agree, and hopefully we can make sure that it does, going forward as
well.

-- 
Jens Axboe




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