Re: [PATCH 09/13] aio: add support for async openat()

* Linus Torvalds [off-list ref] wrote:

What do you think? Do you think it might be possible to aim for a generic "do 
system call asynchronously" model instead?

I'm adding Ingo the to cc, because I think Ingo had a "run this list of system 
calls" patch at one point - in order to avoid system call overhead. I don't 
think that was very interesting (because system call overhead is seldom all that 
noticeable for any interesting system calls), but with the "let's do the list 
asynchronously" addition it might be much more intriguing. Ingo, do I remember 
correctly that it was you? I might be confused about who wrote that patch, and I 
can't find it now.

Yeah, it was the whole 'syslets' and 'threadlets' stuff - I had both implemented 
and prototyped into a 'list directory entries asynchronously' testcase.

Threadlets was pretty close to what you are suggesting now. Here's a very good (as 
usual!) writeup from LWN:

  https://lwn.net/Articles/223899/

Thanks,

	Ingo

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