Re: [PATCH 4/5] Add a sysconf syscall
From: Andi Kleen
Date: Mon May 16 2011 - 12:01:24 EST
> ...and libc will start making many such calls in a row in order to retrieve
> a dozen of such values.
It doesn't because the user interface is sysconf(). So the user program
just asks for it piece by piece.
> It's rather inefficient to return just one word.
> Try to return more data per call.
I considered that, but is there a concrete use case?
I didn't want to code it up without concrete use case.
> Pass a pointer to the result struct and its length.
> Future-proof API, such as using generously wide data types,
> passing "version of struct" input parameter to facilitate incompatible
> future changes, etc.
Please provide a use case for all this complexity.
[... more complexity snipped ... ]
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/