From: Pekka Enberg <penberg@cs.helsinki.fi>
To: Manfred Spraul <manfred@colorfullife.com>
Cc: "Christoph Lameter" <clameter@sgi.com>,
"Linus Torvalds" <torvalds@osdl.org>,
"Daniel Hokka Zakrisson" <daniel@hozac.com>,
linux-kernel@vger.kernel.org,
"Björn Steinbrink" <B.Steinbrink@gmx.de>,
greg@kroah.com, matthew@wil.cx, akpm@osdl.org
Subject: Re: [PATCH] fs: fcntl_setlease defies lease_init assumptions
Date: Tue, 09 May 2006 22:05:25 +0300 [thread overview]
Message-ID: <1147201526.23732.9.camel@localhost> (raw)
In-Reply-To: <4460DEAD.9040900@colorfullife.com>
On Tue, 2006-05-09 at 20:25 +0200, Manfred Spraul wrote:
> No - it would only make sense if it could be used for all slabs.
> Otherwise: How should kfree figure out if it's called for a slab with
> embedded pointers or not?
Yeah, you're absolutely right. Which is exactly why I asked what you
want to do with the OFF_SLAB case. We certainly can support both by
virtualizing kfree() and kmem_cache_free() with struct slab_operations
type of thing, but that's probably not very performant. Well, it might
be for NUMA, as virt_to_page() is so expensive.
Anyway, embedding struct kmem_cache pointer in the beginning of slab
page is doable (I have a proof-of-concept patch for that btw) but we
need to solve OFF_SLAB first.
Pekka
next prev parent reply other threads:[~2006-05-09 19:05 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-05-07 23:21 [PATCH] fs: fcntl_setlease defies lease_init assumptions Daniel Hokka Zakrisson
2006-05-08 3:33 ` Linus Torvalds
2006-05-08 3:34 ` Linus Torvalds
2006-05-08 8:02 ` Daniel Hokka Zakrisson
2006-05-08 7:57 ` Daniel Hokka Zakrisson
2006-05-08 8:31 ` Pekka Enberg
2006-05-08 8:34 ` Pekka Enberg
2006-05-08 15:12 ` Linus Torvalds
2006-05-08 16:06 ` Pekka Enberg
2006-05-08 16:28 ` Linus Torvalds
2006-05-08 19:36 ` Pekka Enberg
2006-05-09 3:38 ` Christoph Lameter
2006-05-09 3:49 ` Martin J. Bligh
2006-05-09 5:31 ` Christoph Lameter
2006-05-09 6:16 ` Martin J. Bligh
2006-05-09 6:22 ` Manfred Spraul
2006-05-09 6:35 ` Keith Owens
2006-05-09 6:37 ` Nick Piggin
2006-05-09 10:26 ` Pekka J Enberg
2006-05-09 18:25 ` Manfred Spraul
2006-05-09 18:56 ` Linus Torvalds
2006-05-09 19:05 ` Pekka Enberg [this message]
2006-05-09 19:15 ` Pekka Enberg
2006-05-09 14:40 ` Linus Torvalds
2006-05-09 23:59 ` Christoph Lameter
2006-05-08 16:36 ` Dave Jones
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