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  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]
Date:	Sun, 19 Oct 2014 09:45:52 +0800
From:	Daniel J Blueman <daniel@...ascale.com>
To:	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	Bjorn Helgaas <bhelgaas@...gle.com>
Cc:	Daniel J Blueman <daniel@...ascale.com>, x86@...nel.org,
	linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org,
	Steffen Persvold <sp@...ascale.com>
Subject: [PATCH v2 5/5] Numachip: use 2GB memory block size

Use appropriate memory block size to reduce sysfs entry creation time
by 16x.

Boot-tested with the four permutations of X86_UV and X86_NUMACHIP.

Signed-off-by: Daniel J Blueman <daniel@...ascale.com>
---
 arch/x86/mm/init_64.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 5621c47..22ea6de 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -53,6 +53,7 @@
 #include <asm/cacheflush.h>
 #include <asm/init.h>
 #include <asm/uv/uv.h>
+#include <asm/numachip/numachip.h>
 #include <asm/setup.h>
 
 #include "mm_internal.h"
@@ -1235,9 +1236,9 @@ static unsigned long probe_memory_block_size(void)
 	/* start from 2g */
 	unsigned long bz = 1UL<<31;
 
-#ifdef CONFIG_X86_UV
-	if (is_uv_system()) {
-		printk(KERN_INFO "UV: memory block size 2GB\n");
+#ifdef CONFIG_X86_64
+	if (is_uv_system() || is_numachip_system()) {
+		pr_info("Memory block size 2GB for large-SMP system\n");
 		return 2UL * 1024 * 1024 * 1024;
 	}
 #endif
-- 
1.9.1

--
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/

Powered by blists - more mailing lists