diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/page_alloc.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 86f7d952e2cc..06e62300d627 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -5675,8 +5675,11 @@ static void __init find_zone_movable_pfns_for_nodes(void) required_kernelcore = max(required_kernelcore, corepages); } - /* If kernelcore was not specified, there is no ZONE_MOVABLE */ - if (!required_kernelcore) + /* + * If kernelcore was not specified or kernelcore size is larger + * than totalpages, there is no ZONE_MOVABLE. + */ + if (!required_kernelcore || required_kernelcore >= totalpages) goto out; /* usable_startpfn is the lowest possible pfn ZONE_MOVABLE can be at */ |