Re: [PATCH] Allow lockless traversal of notifier lists

On Mon, Nov 28, 2005 at 05:05:47PM +0100, Andi Kleen wrote:
>   *
>   *	Returns zero on success, or %-ENOENT on failure.
>   */
> @@ -175,6 +181,7 @@
>  

There should be an smp_read_barrier_depends() here for the first
dereferencing of the notifier block head, I think.

>  	while(nb)
>  	{
> +		smp_read_barrier_depends();
>  		ret=nb->notifier_call(nb,val,v);
>  		if(ret&NOTIFY_STOP_MASK)
>  		{

Thanks
Dipankar
-
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/

Follow-Ups:
- Re: [PATCH] Allow lockless traversal of notifier lists
  - From: Andi Kleen <[email protected]>

References:
- [PATCH] Allow lockless traversal of notifier lists
  - From: Andi Kleen <[email protected]>
- Re: [PATCH] Allow lockless traversal of notifier lists
  - From: Dipankar Sarma <[email protected]>
- Re: [PATCH] Allow lockless traversal of notifier lists
  - From: Andi Kleen <[email protected]>

Prev by Date: ACPI: PCI Interrupt Link [LNKA] (IRQs *7)
Next by Date: [DRIVER MODEL] Allow overlapping resources for platform devices
Previous by thread: Re: [PATCH] Allow lockless traversal of notifier lists
Next by thread: Re: [PATCH] Allow lockless traversal of notifier lists
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]