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Revert "x86/mm/numa: Remove numa_nodemask_from_meminfo()" 

This reverts commit 474aeffd88 due to testing
failures.

Reported-by: "Kirill A. Shutemov" <kirill@shutemov.name>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Wei Yang <richard.weiyang@gmail.com>
Cc: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20170406124459.dwn5zhpr2xqg3lqm@node.shutemov.name
This commit is contained in:
Thomas Gleixner 2017-04-08 00:00:53 +02:00
parent 1d33b21956
commit b678c91aef
1 changed files with 20 additions and 1 deletions
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21
arch/x86/mm/numa.c
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@ -314,6 +314,20 @@ int __init numa_cleanup_meminfo(struct numa_meminfo *mi)
return 0;
}
/*
* Set nodes, which have memory in @mi, in *@nodemask.
*/
static void __init numa_nodemask_from_meminfo(nodemask_t *nodemask,
const struct numa_meminfo *mi)
{
int i;
for (i = 0; i < ARRAY_SIZE(mi->blk); i++)
if (mi->blk[i].start != mi->blk[i].end &&
mi->blk[i].nid != NUMA_NO_NODE)
node_set(mi->blk[i].nid, *nodemask);
}
/**
* numa_reset_distance - Reset NUMA distance table
*
@ -333,12 +347,16 @@ void __init numa_reset_distance(void)
static int __init numa_alloc_distance(void)
{
nodemask_t nodes_parsed;
size_t size;
int i, j, cnt = 0;
u64 phys;
/* size the new table and allocate it */
for_each_node_mask(i, numa_nodes_parsed)
nodes_parsed = numa_nodes_parsed;
numa_nodemask_from_meminfo(&nodes_parsed, &numa_meminfo);
for_each_node_mask(i, nodes_parsed)
cnt = i;
cnt++;
size = cnt * cnt * sizeof(numa_distance[0]);
@ -517,6 +535,7 @@ static int __init numa_register_memblks(struct numa_meminfo *mi)
/* Account for nodes with cpus and no memory */
node_possible_map = numa_nodes_parsed;
numa_nodemask_from_meminfo(&node_possible_map, mi);
if (WARN_ON(nodes_empty(node_possible_map)))
return -EINVAL;