Alexander Viro wrote:
>
> On Fri, 31 Mar 2000, Jeff V. Merkey wrote:
>
> > I also need it to locate all mirror groups and mirror members before
> > bringing the mirroring and hotfixing engine on line. This is why. If
> > there is a "cleaner" way to do this with a published API, please show
> > me. Also, attached is what I am doing in 2.0/2.2 -- it works great.
>
> It doesn't. ->ioctl() before ->open() is illegal. You may get out with
> that for some drivers, but it's not guaranteed to work. For one thing,
> it's an immediate race - think what will happen if rmmod will hit you
> while you are in ->ioctl().
This is nice to know, but it's not much help. Is there a cleaner way?
The simplest would be to allow me to scan the blkdev structure. I've
also noticed that in the cdrom drivers call ioctl_by_bdev() which would
be perfect to use, expect I cannot get a valid block_device * structure
because some of the functions are static.
What's the best method?
Jeff
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This archive was generated by hypermail 2b29 : Fri Mar 31 2000 - 21:00:29 EST