> > > (And if I am not mistaken rscsi_disks[].device is only set
> > > to zero in sd_detach(), called by the proc code and by
> > > scsi_unregister_host() and scsi_unregister_device() in scsi.c.)
> >
> > Not strictly true. We overallocate rscsi_disks[] with SD_EXTRA_DEV
> > extra slots. This leaves room for expansion as modules are loaded, as
we
> > currently don't have the locking in place to grow the thing dynamically.
> > The unused slots are initialized with a NULL value in .device.
>
> Eric, could you tell me what reads partition tables if we attach new disk
> when system is already booted? sd_finish() via revalidate_scsidisk()?
Exactly. At the bottom of revalidate_scsidisk, there is a call to
resetup_one_dev(), which is the call into gendsk to tell it to read the
partition table for this one device.
-Eric
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