linux-kernel - Re: [PATCH] x86: make 32bit MAX_HARDIRQSS_PER_CPU to be NR

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] [day] [month] [year] [list]

Message-ID: <86802c440901141338m78233d09y99d79be98eea4cba@mail.gmail.com>
Date:	Wed, 14 Jan 2009 13:38:20 -0800
From:	"Yinghai Lu" <yinghai@...nel.org>
To:	"Ingo Molnar" <mingo@...e.hu>
Cc:	"Thomas Gleixner" <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] x86: make 32bit MAX_HARDIRQSS_PER_CPU to be NR_VECTORS

On Wed, Jan 14, 2009 at 3:17 AM, Ingo Molnar <mingo@...e.hu> wrote:
>
> * Yinghai Lu <yinghai@...nel.org> wrote:
>
>> Impact: clean up to be same as 64bit
>>
>> 32bit is use per-cpu vector too, so don't use default NR_IRQS
>>
>> Signed-off-by: Yinghai Lu <yinghai@...nel.org>
>>
>> ---
>>  arch/x86/include/asm/hardirq_32.h  |    3 +++
>>  arch/x86/include/asm/irq_vectors.h |    4 ++--
>>  2 files changed, 5 insertions(+), 2 deletions(-)
>>
>> Index: linux-2.6/arch/x86/include/asm/hardirq_32.h
>> ===================================================================
>> --- linux-2.6.orig/arch/x86/include/asm/hardirq_32.h
>> +++ linux-2.6/arch/x86/include/asm/hardirq_32.h
>> @@ -20,6 +20,9 @@ typedef struct {
>>
>>  DECLARE_PER_CPU(irq_cpustat_t, irq_stat);
>>
>> +/* We can have at most NR_VECTORS irqs routed to a cpu at a time */
>> +#define MAX_HARDIRQS_PER_CPU NR_VECTORS
>> +
>>  #define __ARCH_IRQ_STAT
>>  #define __IRQ_STAT(cpu, member) (per_cpu(irq_stat, cpu).member)
>
> applied to tip/x86/cleanups. Btw., isnt the irq_vectors.h bit (mentioned
> in the diffstat) missing?
>

copy and modify the patch
forget to do quilt refresh --diffstat

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/