Re: [RFC] PCI device list locking - take 2

• Next message: Werner Almesberger: "Re: Sco vs. IBM"
• Previous message: Greg KH: "Re: [PATCH] udev enhancements to use kernel event queue"
• In reply to: Greg KH: "Re: [RFC] PCI device list locking - take 2"
• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

* Greg KH (greg@kroah.com) wrote:
> On Wed, Jun 18, 2003 at 04:32:37PM -0700, Chris Wright wrote:
> > I'm not sure testing a valid ->next makes sense. It could be non-NULL,
> > but poison, or if it was using list_del_init, it would be stuck in loop.
>
> When we take the devices off of the list, after list_del(), still under
> the lock, we can null out the list pointers. Then, later under the
> lock, we can check the pointer before we move to it. We aren't doing
> fancy list_* functions with the pci device lists at all.

Ah, ok, that should work.

thanks,
-chris

-- 
Linux Security Modules     http://lsm.immunix.org     http://lsm.bkbits.net
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

• Next message: Werner Almesberger: "Re: Sco vs. IBM"
• Previous message: Greg KH: "Re: [PATCH] udev enhancements to use kernel event queue"
• In reply to: Greg KH: "Re: [RFC] PCI device list locking - take 2"
• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

This archive was generated by hypermail 2b29 : Mon Jun 23 2003 - 22:00:27 EST