From: Dipankar Sarma <dipankar@in.ibm.com>
To: hch@infradead.org
Cc: linux-kernel@vger.kernel.org
Subject: Re: [RFC] kmem_cache_zalloc
Date: Thu, 28 Mar 2002 16:51:42 +0530 [thread overview]
Message-ID: <20020328165142.A23089@in.ibm.com> (raw)
In article <20020327201917.A23810@phoenix.infradead.org> Christoph Hellwig wrote:
> I'd really go for k(mem_)zalloc, but a kmem_cache_alloc leads people toward
> writing bad code. The purpose of the slab allocator is to allow caching
> readily constructed objects, a _zalloc destroys them on alloc.
I thought that the life span of an object is between
kmem_cache_alloc and kmem_cache_free. If you are expecting caching
beyond this, you may not get correct data. kmem_cache allocator
is supposed to quickly allocate fixed size structures avoiding
the need for frequent splitting and coalescing in the allocator.
Am I missing something here ?
Thanks
--
Dipankar Sarma <dipankar@in.ibm.com> http://lse.sourceforge.net
Linux Technology Center, IBM Software Lab, Bangalore, India.
next reply other threads:[~2002-03-28 11:20 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-03-28 11:21 Dipankar Sarma [this message]
2002-03-28 11:25 ` [RFC] kmem_cache_zalloc David Woodhouse
2002-03-28 11:40 ` Dipankar Sarma
-- strict thread matches above, loose matches on Subject: below --
2002-03-27 19:39 Eric Sandeen
2002-03-27 19:47 ` Andrew Morton
2002-03-27 19:52 ` Tigran Aivazian
2002-03-27 20:17 ` Alan Cox
2002-03-29 22:17 ` Pavel Machek
2002-03-29 23:21 ` Alan Cox
2002-03-27 20:19 ` Christoph Hellwig
2002-03-27 20:23 ` Jeff Garzik
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