Re: REQUEST for new 'topology' metrics to be moved out of the 'queue' sysfs directory.
From: Linus Torvalds <torvalds@linux-foundation.org>
Date: 2009-06-25 17:46:41
Also in:
dm-devel, linux-fsdevel, linux-raid, linux-scsi, lkml
Possibly related (same subject, not in this thread)
- 2009-07-09 · Re: REQUEST for new 'topology' metrics to be moved out of the 'queue' sysfs directory. · Neil Brown <hidden>
- 2009-07-07 · Re: REQUEST for new 'topology' metrics to be moved out of the 'queue' sysfs directory. · Bill Davidsen <hidden>
- 2009-07-07 · Re: REQUEST for new 'topology' metrics to be moved out of the 'queue' sysfs directory. · "Martin K. Petersen" <martin.petersen@oracle.com>
- 2009-06-27 · Re: REQUEST for new 'topology' metrics to be moved out of the 'queue' sysfs directory. · Neil Brown <hidden>
- 2009-06-27 · Re: REQUEST for new 'topology' metrics to be moved out of the 'queue' sysfs directory. · Neil Brown <hidden>
On Thu, 25 Jun 2009, Martin K. Petersen wrote:
Neil> So I asked git why it as added, and it pointed to Neil> commit 1308835ffffe6d61ad1f48c5c381c9cc47f683ec Neil> which suggests that it was added so that user space could tell the Neil> kernel whether the device was rotational, rather than the other Neil> way around. There's an option to do it via udev for broken devices that don't report it. But both SCSI and ATA have a setting that gets queried and the queue flag set accordingly.
.. except few devices actually set it. That flag is _definitely_ all about the user being able to override it. Linus