diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/huge_memory.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 45b6d53bcfbc..892d8a17a7e5 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -527,6 +527,14 @@ static int __init hugepage_init(void) goto out; } + /* + * By default disable transparent hugepages on smaller systems, + * where the extra memory used could hurt more than TLB overhead + * is likely to save. The admin can still enable it through /sys. + */ + if (totalram_pages < (512 << (20 - PAGE_SHIFT))) + transparent_hugepage_flags = 0; + start_khugepaged(); set_recommended_min_free_kbytes(); |