Re: [patch] drivers: wait for threaded probes between initcall levels

On Fri, 27 Oct 2006 22:19:25 -0700
Andrew Morton <[email protected]> wrote:

> The simplest implementation of "A needs B to have run" is for A to simply
> call B, and B arranges to not allow itself to be run more than once.
> 
> But that doesn't work in the case "A needs B to be run, but only if B is
> present".  Resolving this one would require something like a fancy
> "synchronisation object" against which dependers and dependees can register
> interest, and a core engine which takes care of the case where a depender
> registers against something which no dependees have registered.

otoh, we could stick with the simple "A calls B" solution, and A also
provides an attribute-weak implementation of B to cover the "A needs B but
only if B is present" problems.

Had to say, really - one would need to study some specific problem cases.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

---

• References:
  • Re: [RFC: 2.6.19 patch] let PCI_MULTITHREAD_PROBE depend on BROKEN
    • From: Matthew Wilcox <[email protected]>
  • Re: [RFC: 2.6.19 patch] let PCI_MULTITHREAD_PROBE depend on BROKEN
    • From: Andrew Morton <[email protected]>
  • Re: [RFC: 2.6.19 patch] let PCI_MULTITHREAD_PROBE depend on BROKEN
    • From: Stephen Hemminger <[email protected]>
  • Re: [RFC: 2.6.19 patch] let PCI_MULTITHREAD_PROBE depend on BROKEN
    • From: Greg KH <[email protected]>
  • Re: [RFC: 2.6.19 patch] let PCI_MULTITHREAD_PROBE depend on BROKEN
    • From: Pavel Machek <[email protected]>
  • Re: [RFC: 2.6.19 patch] let PCI_MULTITHREAD_PROBE depend on BROKEN
    • From: Andrew Morton <[email protected]>
  • vmlinux.lds: consolidate initcall sections
    • From: Andrew Morton <[email protected]>
  • [patch] drivers: wait for threaded probes between initcall levels
    • From: Andrew Morton <[email protected]>
  • Re: [patch] drivers: wait for threaded probes between initcall levels
    • From: Alan Cox <[email protected]>
  • Re: [patch] drivers: wait for threaded probes between initcall levels
    • From: Andrew Morton <[email protected]>
  • Re: [patch] drivers: wait for threaded probes between initcall levels
    • From: Grant Grundler <[email protected]>
  • Re: [patch] drivers: wait for threaded probes between initcall levels
    • From: Andrew Morton <[email protected]>

• Prev by Date: Re: AMD X2 unsynced TSC fix?
• Next by Date: Re: [PATCH] x86_64 irq: reset more to default when clear irq_vector for destroy_irq
• Previous by thread: Re: [patch] drivers: wait for threaded probes between initcall levels
• Next by thread: Re: [patch] drivers: wait for threaded probes between initcall levels
• Index(es):
  • Date
  • Thread

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]