On Fri, Feb 10, 2006 at 02:53:48PM +0000, Alasdair G Kergon wrote:
> I disagree - either dm should work out the *correct* geometry to
> return for those mappings where a geometry is known and it's sensible
> to return one (e.g. linear mapping to the start of certain scsi
> devices), or else it should leave it to userspace to decide how to
> handle the situation. (And there's nothing currently stopping
> userspace seeing that a dm device is constructed out of a scsi device
> and choosing to use the geometry of that underlying device.)
s/scsi/hd/ in those examples for slightly more sense
What would the 'geometry' of a dm 'error' target mean?
Or of a snapshot?
In any patch, consider that we've already identified a need
(e.g. for multipath) to add a framework to device-mapper to pass
certain ioctls along to the underlying devices. I'd prefer
to see that approach here: for tables with a single entry, pass
the ioctl into the target. Linear and multipath would then pass
it along to the underlying device; other targets would return zeros.
Alasdair
--
[email protected]
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
