Commit 8676caa4 authored by Martin Schwidefsky's avatar Martin Schwidefsky

s390/topology: correct allocation of topology information

The data stored by the STSI instruction can be up to a page in size
but the memblock_virt_alloc allocation for tl_info only specifies
16 bytes. The memory after the short allocation is overwritten
every time arch_update_cpu_topology is called.

Fixes: 8c910580 "s390/numa: establish cpu to node mapping early"
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent da8fd820
...@@ -458,7 +458,7 @@ void __init topology_init_early(void) ...@@ -458,7 +458,7 @@ void __init topology_init_early(void)
set_sched_topology(s390_topology); set_sched_topology(s390_topology);
if (!MACHINE_HAS_TOPOLOGY) if (!MACHINE_HAS_TOPOLOGY)
goto out; goto out;
tl_info = memblock_virt_alloc(sizeof(*tl_info), PAGE_SIZE); tl_info = memblock_virt_alloc(PAGE_SIZE, PAGE_SIZE);
info = tl_info; info = tl_info;
store_topology(info); store_topology(info);
pr_info("The CPU configuration topology of the machine is: %d %d %d %d %d %d / %d\n", pr_info("The CPU configuration topology of the machine is: %d %d %d %d %d %d / %d\n",
......
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