Re: [patch 0/6] Per cpu structures for SLUB

On Thu, 23 Aug 2007, Peter Zijlstra wrote:

> while I like this patch set I'm at odds with the interaction of this and
> making the alloc/free fast paths lockless. 
> 
> The main race is s->cpu_slab[] and c->freelist. How does one close that
> gap?

By either reloading the cpu slab after disabling interupts (my initial 
approach) or by disabling preemption.

> (btw, have you looked at my -rt slub patch?)

I skimmed over it. Not sure what to make of it.

-
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:
- [patch 0/6] Per cpu structures for SLUB
  - From: Christoph Lameter <[email protected]>
- Re: [patch 0/6] Per cpu structures for SLUB
  - From: Peter Zijlstra <[email protected]>

Prev by Date: kernel version 2.6.11-12 : Apic fires less often on Intel quad Cores x5355 than on other platforms
Next by Date: [patch 0/2] s390 related scheduler patches and questions
Previous by thread: Re: [patch 0/6] Per cpu structures for SLUB
Next by thread: Re: [patch 0/6] Per cpu structures for SLUB
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]