[Patch]Tiny bug fix of memory hotadd (pgdat->node_present_pages are not correct).

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hello.

This patch is tiny bug fix for memory hotplug.

When pages are onlined, not only zone->present_pages 
but also pgdat->node_present_pages should be refreshed.

This parameter is used to show information at
/sys/device/system/node/nodeX/meminfo 
via si_meminfo_node().

So, it shows strange value for MemUsed which is calculated
(node_present_pages - all zones free pages).

This patch is for 2.6.16-rc5-mm3.
And I tested this on my hotplug emulation environment.

Please apply.

Signed-off-by: Yasunori Goto <[email protected]>

Index: pgdat7/mm/memory_hotplug.c
===================================================================
--- pgdat7.orig/mm/memory_hotplug.c	2006-03-09 18:32:11.000000000 +0900
+++ pgdat7/mm/memory_hotplug.c	2006-03-09 18:34:34.000000000 +0900
@@ -130,6 +130,7 @@ int online_pages(unsigned long pfn, unsi
 		onlined_pages++;
 	}
 	zone->present_pages += onlined_pages;
+	zone->zone_pgdat->node_present_pages += onlined_pages;
 
 	setup_per_zone_pages_min();
 

-- 
Yasunori Goto 


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

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]
  Powered by Linux