From: Ravikiran G Thirumalai <kiran@in.ibm.com>
To: Rusty Russell <rusty@rustcorp.com.au>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH] per-cpu areas
Date: Tue, 12 Feb 2002 10:28:52 +0530 [thread overview]
Message-ID: <20020212102852.I32236@in.ibm.com> (raw)
In-Reply-To: <E17wsrr-0007bD-00@wagner.rustcorp.com.au>
In-Reply-To: <E17wsrr-0007bD-00@wagner.rustcorp.com.au>; from rusty@rustcorp.com.au on Thu, Oct 03, 2002 at 09:25:23AM +1000
> +static void __init setup_per_cpu_areas(void)
> +{
> + unsigned long size, i;
> + char *ptr;
> + /* Created by linker magic */
> + extern char __per_cpu_start[], __per_cpu_end[];
> +
> + /* Copy section for each CPU (we discard the original) */
> + size = ALIGN(__per_cpu_end - __per_cpu_start, SMP_CACHE_BYTES);
> + ptr = alloc_bootmem(size * NR_CPUS);
Would it be possible to free up NR_CPUS - smp_num_cpus worth of memory
after smp_init? ....
Regards,
Kiran
--
Ravikiran G Thirumalai <kiran@in.ibm.com>
Linux Technology Center, IBM Software Labs,
Bangalore.
next parent reply other threads:[~2002-02-12 5:02 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <E17wsrr-0007bD-00@wagner.rustcorp.com.au>
2002-02-12 4:58 ` Ravikiran G Thirumalai [this message]
2002-02-13 9:48 ` [PATCH] per-cpu areas Rusty Russell
2002-02-19 2:05 ` Something Wrong with LKML ???? Zoran Davidovac
2002-02-19 8:19 ` Matti Aarnio
2002-03-05 7:54 [PATCH] per-cpu areas Rusty Russell
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