diff options
| -rw-r--r-- | arch/s390/mm/vmem.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/s390/mm/vmem.c b/arch/s390/mm/vmem.c index be32a38bb91f..a2b79681df69 100644 --- a/arch/s390/mm/vmem.c +++ b/arch/s390/mm/vmem.c @@ -334,17 +334,21 @@ int __meminit vmemmap_populate(unsigned long start, unsigned long end, int node, { int ret; + mutex_lock(&vmem_mutex); /* We don't care about the node, just use NUMA_NO_NODE on allocations */ ret = add_pagetable(start, end, false); if (ret) remove_pagetable(start, end, false); + mutex_unlock(&vmem_mutex); return ret; } void vmemmap_free(unsigned long start, unsigned long end, struct vmem_altmap *altmap) { + mutex_lock(&vmem_mutex); remove_pagetable(start, end, false); + mutex_unlock(&vmem_mutex); } void vmem_remove_mapping(unsigned long start, unsigned long size) |