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SubjectRe: re-reading the partition table on a "busy" drive
On Thu, Sep 07, Michael Tokarev wrote:

> Is it possible to implement such a feature? I mean, is it
> easy to know which *partitions* (subdevices?) of the whole
> device are currently in use, as opposed to the whole drive?

Its already there, see include/linux/blkpg.h
parted uses this interface, fdisk and others use the rereadpt ioctl.
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