linux-kernel - Re: [PATCH 03/25] add dyn

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <86802c440808022204s62ff2b35g391125babdb2e8e4@mail.gmail.com>
Date:	Sat, 2 Aug 2008 22:04:28 -0700
From:	"Yinghai Lu" <yhlu.kernel@...il.com>
To:	"Johannes Weiner" <hannes@...urebad.de>
Cc:	"Ingo Molnar" <mingo@...e.hu>,
	"Thomas Gleixner" <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	"Dhaval Giani" <dhaval@...ux.vnet.ibm.com>,
	"Mike Travis" <travis@....com>,
	"Andrew Morton" <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 03/25] add dyn_array support

On Sat, Aug 2, 2008 at 9:55 PM, Johannes Weiner <hannes@...urebad.de> wrote:
> Hi,
>
> "Yinghai Lu" <yhlu.kernel@...il.com> writes:
>
>> On Sat, Aug 2, 2008 at 9:03 PM, Johannes Weiner <hannes@...urebad.de> wrote:
>>> Hi,
>>>
>>> Yinghai Lu <yhlu.kernel@...il.com> writes:
>>>
>>>> could have crazy big arrays and allocate them in bootmem at init stage.
>>>> also also to allocate array according to size we need to use to avoid wasting
>>>> memory
>>>> use CONFIG_HAVE_DYN_ARRAY to enable it or not
>>>>
>>>> usage:
>>>>
>>>> |static struct irq_desc irq_desc_init __initdata = {
>>>> |       .status = IRQ_DISABLED,
>>>> |       .chip = &no_irq_chip,
>>>> |       .handle_irq = handle_bad_irq,
>>>> |       .depth = 1,
>>>> |       .lock = __SPIN_LOCK_UNLOCKED(irq_desc->lock),
>>>> |#ifdef CONFIG_SMP
>>>> |       .affinity = CPU_MASK_ALL
>>>> |#endif
>>>> |};
>>>> |
>>>> |static void __init init_work(void *data)
>>>> |{
>>>> |       struct dyn_array *da = data;
>>>> |       struct  irq_desc *desc;
>>>> |       int i;
>>>> |
>>>> |       desc = *da->name;
>>>
>>> Where *da->name might be NULL...

*da->name = __alloc_bootmem_nopanic(size, da->align, phys);

YH
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/