Re: [RFC] /dev/ioasid uAPI proposal

Enrico Weigelt, metux IT consult
2021-06-02T08:58:22Z

On 31.05.21 19:37, Parav Pandit wrote:

> It appears that this is only to make map ioctl faster apart from accounting.
> It doesn't have any ioasid handle input either.
>
> In that case, can it be a new system call? Why does it have to be under /dev/ioasid?
> For example few years back such system call mpin() thought was proposed in [1].

I'm very reluctant to more syscall inflation. We already have lots of
syscalls that could have been easily done via devices or filesystems
(yes, some of them are just old Unix relics).

Syscalls don't play well w/ modules, containers, distributed systems,
etc, and need extra low-level code for most non-C languages (eg.
scripting languages).

--mtx

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Enrico Weigelt, metux IT consult
Free software and Linux embedded engineering
info@metux.net -- +49-151-27565287