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Date: Mon, 7 Apr 2008 13:17:54 +0300
From: "Pekka Enberg" <penberg@cs.helsinki.fi>
To: "Boaz Harrosh" <bharrosh@panasas.com>
Subject: Re: scsi: fix sense_slab/bio swapping livelock
Cc: "Hugh Dickins" <hugh@veritas.com>,
       "James Bottomley" <James.Bottomley@hansenpartnership.com>,
       "Andrew Morton" <akpm@linux-foundation.org>,
       "FUJITA Tomonori" <fujita.tomonori@lab.ntt.co.jp>,
       "Jens Axboe" <jens.axboe@oracle.com>,
       "Christoph Lameter" <clameter@sgi.com>,
       "Peter Zijlstra" <a.p.ziljstra@chello.nl>,
       "Rafael J. Wysocki" <rjw@sisk.pl>, mpm@selenic.com,
       linux-scsi <linux-scsi@vger.kernel.org>,
       linux-kernel <linux-kernel@vger.kernel.org>
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Hi Boaz,

On Mon, Apr 7, 2008 at 1:07 PM, Boaz Harrosh <bharrosh@panasas.com> wrote:
>  Please forgive my ignorance, but what is then the difference between kmem_cache_alloc()
>  and kmalloc?

Constructors, user-defined alignment, and tighter object packing.

On Mon, Apr 7, 2008 at 1:07 PM, Boaz Harrosh <bharrosh@panasas.com> wrote:
>  would you not agree that sometimes we want to override that sharing of SLOBs?

To be honest, I really don't quite understand your use-case. But as
far as I can tell, it hasn't never been explicitly guaranteed and most
certainly has not been true since the merging of SLOB and more
recently SLUB.

                Pekka