Re: FIBMAP ioctl restrictions: why?
Jens Axboe (axboe@image.dk)
Sun, 7 Nov 1999 23:09:39 +0100
On Sun, Nov 07 1999, Martin Mares wrote:
> Hello, world!\n
>
> I'm currently writting my own database library (a much faster alternative
> to GDBM) and I want to sort file accesses before feeding them to the kernel,
> so that they will be executed in linear sector order and seek time will be
> minimized. Unfortunately, this plan breaks on the FIBMAP ioctl requiring
> CAP_SYS_RAWIO capability. To be honest, I don't see why -- can the kernel
> gurus advise me what deep reasons are behind this restriction?
It bothers the DVD folks too, FWIW.
--
* Jens Axboe <axboe@image.dk>
* Linux CD-ROM Maintainer
* http://www.kernel.dk
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