debuggers.hg

changeset 21280:d01ea51fc929

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x86: make pxm_to_node() return sane values when disabling NUMA internally

Otherwise, pass-through code may call memory allocation functions with
invalid node IDs, causing the allocations to fail.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
author Keir Fraser <keir.fraser@citrix.com>
date Mon Apr 26 12:11:30 2010 +0100 (2010-04-26)
parents f766f2142a85
children 3ce824963dc4
files xen/arch/x86/srat.c
line diff
     1.1 --- a/xen/arch/x86/srat.c	Mon Apr 26 06:52:44 2010 +0100
     1.2 +++ b/xen/arch/x86/srat.c	Mon Apr 26 12:11:30 2010 +0100
     1.3 @@ -25,7 +25,7 @@ static struct acpi_table_slit *__read_mo
     1.4  static nodemask_t nodes_parsed __initdata;
     1.5  static nodemask_t nodes_found __initdata;
     1.6  static struct node nodes[MAX_NUMNODES] __initdata;
     1.7 -static u8 __read_mostly pxm2node[256] = { [0 ... 255] = 0xff };
     1.8 +static u8 __read_mostly pxm2node[256] = { [0 ... 255] = NUMA_NO_NODE };
     1.9  
    1.10  
    1.11  static int num_node_memblks;
    1.12 @@ -112,6 +112,8 @@ static __init void bad_srat(void)
    1.13  	acpi_numa = -1;
    1.14  	for (i = 0; i < MAX_LOCAL_APIC; i++)
    1.15  		apicid_to_node[i] = NUMA_NO_NODE;
    1.16 +	for (i = 0; i < ARRAY_SIZE(pxm2node); i++)
    1.17 +		pxm2node[i] = NUMA_NO_NODE;
    1.18  }
    1.19  
    1.20  #ifdef CONFIG_X86_64