On Fri, Apr 13, 2001 at 09:29:43PM -0400, Alexander Viro wrote:
>
> On Fri, 13 Apr 2001, Jeff V. Merkey wrote:
>
> > How are folks supposed to open disk and tape devices from kernel modules
> > without these? Not everything should be done in user space Al. If you
>
> Normally - filp_open(). If all you want is ioctl on block device -
> blkdev_get() + ioctl_by_bdev() + blkdev_put(). If you want it by
> device _number_ - use bdget().
>
> > remove blkdev_open I will not be able to properly increment the use
> > count an a disk device I may be reading or writing to.
>
> Yes, you will. And I would _really_ advice you to do that by
> name instead of device number - that way you will avoid a lot of pain
> couple of years down the road.
This is **VERY** good to know, and also shows that you in fact have
looked through my code.
:-)
Jeff
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This archive was generated by hypermail 2b29 : Sun Apr 15 2001 - 21:00:22 EST