linux-kernel - Re: [PATCH 1/1] SGI UV: TLB shootdown using broadcast assist unit

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]

Date:	Mon, 9 Jun 2008 17:58:20 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Cliff Wickman <cpw@....com>
Cc:	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	the arch/x86 maintainers <x86@...nel.org>
Subject: Re: [PATCH 1/1] SGI UV: TLB shootdown using broadcast assist unit


* Cliff Wickman <cpw@....com> wrote:

> TLB shootdown for SGI UV.

With your patch applied to latest -tip i got build failures with the 
attached config:

 In file included from arch/x86/kernel/tlb_uv.c:14:
 include/asm/mach-bigsmp/mach_apic.h:35: error: expected ')' before 'bitmap'
 include/asm/mach-bigsmp/mach_apic.h: In function 'calculate_ldr':
 include/asm/mach-bigsmp/mach_apic.h:49: error: 'per_cpu__x86_bios_cpu_apicid' undefined

that is a !SMP config.

the patch below fixes it - the most generic way to access the TLB/apic 
methods is to include mach_apic.h.

	Ingo

---
 arch/x86/kernel/tlb_uv.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Index: linux/arch/x86/kernel/tlb_uv.c
===================================================================
--- linux.orig/arch/x86/kernel/tlb_uv.c
+++ linux/arch/x86/kernel/tlb_uv.c
@@ -10,7 +10,6 @@
 #include <linux/proc_fs.h>
 #include <linux/kernel.h>
 
-#include <asm/mach-bigsmp/mach_apic.h>
 #include <asm/mmu_context.h>
 #include <asm/idle.h>
 #include <asm/genapic.h>
@@ -19,6 +18,8 @@
 #include <asm/uv/uv_bau.h>
 #include <asm/tsc.h>
 
+#include <mach_apic.h>
+
 static struct bau_control **uv_bau_table_bases __read_mostly;
 static int uv_bau_retry_limit __read_mostly;
 static int uv_nshift __read_mostly; /* position of pnode (which is nasid>>1) */

View attachment "config" of type "text/plain" (48849 bytes)