Messages in this thread | ![/](/images/icornerl.gif) | | Date | Thu, 19 Jul 2007 11:36:31 +0200 (CEST) | From | Geert Uytterhoeven <> | Subject | Re: [patch 1/3] ps3: Disk Storage Driver |
| |
On Thu, 19 Jul 2007, Cornelia Huck wrote: > On Thu, 19 Jul 2007 10:57:53 +0200 (CEST), > Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> wrote: > > > Were .probe()/.remove() made concurrent again? I thought that idea was dropped > > because it caused too many problems? > > Well, for a given device, ->probe()/->remove() are locked by dev->sem, > so that there cannot be two probes/removes for the same device at the > same time. However, if you have multiple hotplug events pending at the
OK.
> same time, it depends on your bus whether it does some serialization or > whether it allows multiple probes/removes running for different devices. > (Initial probing of a bus and probing of all devices with a new driver > is done serialized again, I think that's what you're referring to.)
We have a probe thread that checks for new storage devices and adds them to the bus with ps3_system_bus_device_register(), which calls device_register().
I guess the actual bus probe() routine gets called through the notifier call chain? That's where I got lost...
With kind regards,
Geert Uytterhoeven Software Architect
Sony Network and Software Technology Center Europe The Corporate Village · Da Vincilaan 7-D1 · B-1935 Zaventem · Belgium
Phone: +32 (0)2 700 8453 Fax: +32 (0)2 700 8622 E-mail: Geert.Uytterhoeven@sonycom.com Internet: http://www.sony-europe.com/
Sony Network and Software Technology Center Europe A division of Sony Service Centre (Europe) N.V. Registered office: Technologielaan 7 · B-1840 Londerzeel · Belgium VAT BE 0413.825.160 · RPR Brussels Fortis Bank Zaventem · Swift GEBABEBB08A · IBAN BE39001382358619 | ![\](/images/icornerr.gif) |