linux-kernel - Re: [PATCH 1/4] make dev_to

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:	Wed, 20 Feb 2008 12:41:52 -0800
From:	Yinghai Lu <Yinghai.Lu@....COM>
To:	Greg KH <greg@...ah.com>, Ingo Molnar <mingo@...e.hu>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/4] make dev_to_node return online node

please use this one instead. this one is less intrusive, and pcibus_to_node will work too
and don't need other changes.

YH

---

[PATCH] make dev_to_node return online node v2

some numa system ( with multi HT chains) may return node without ram. aka it
is not online.
try to get one online node, otherwise return -1

Signed-off-by: Yinghai Lu <yinghai.lu@....com>

diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index c163ad1..2c1a651 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -213,6 +213,9 @@ struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_device *device, int do
 		set_mp_bus_to_node(busnum, node);
 	else
 		node = get_mp_bus_to_node(busnum);
+
+	if (node != -1 && !node_online(node))
+		node = -1;
 #endif
 
 	/* Allocate per-root-bus (not per bus) arch-specific data.
--
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/