Re: [PATCH] scsi: Silence unnecessary warnings about ioctl to partition

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On 12-05-04 09:11 AM, Mark Lord wrote:
> On 12-05-04 09:06 AM, Mark Lord wrote:
..
>> kernel: [  989.525093] hdparm: sending ioctl 330 to a partition!
>>
>> The in <linux/hdreg.h> say this about 330:
>> ...
>> /* 0x330 is reserved - used to be HDIO_GETGEO_BIG */
>> ...
>>
>> So it's HDIO_GETGEO_BIG, which doesn't exist in newer kernels.
>> I wonder when that got removed?  Minor userspace breakage there.
> 
> Looks like it got removed about 10 years ago,
> either in 2.5.xx or early 2.6.xx, so that's all fine now.
> hdparm still issues it for backward compatibility with
> kernels that lack more modern methods.  Currently we don't
> try to inspect the kernel version at run-time, because
> version numbers are not as reliable as simply issuing
> the ioctl().


I will update hdparm regardless (version 9.40, not out yet)
to try and avoid HDIO_GETGEO_BIG when possible.  It will still
use it under some circumstances (like when sysfs isn't mounted,
which should catch 2.4.xx kernels and older), but mostly not.

Cheers


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