diff options
Diffstat (limited to '')
| -rw-r--r-- | mm/hugetlb.c | 18 |
1 files changed, 7 insertions, 11 deletions
diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 70d2763f92ea..65454896f174 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -66,12 +66,6 @@ static bool hugetlb_cma_page(struct page *page, unsigned int order) #endif static unsigned long hugetlb_cma_size __initdata; -/* - * Minimum page order among possible hugepage sizes, set to a proper value - * at boot time. - */ -static unsigned int minimum_order __read_mostly = UINT_MAX; - __initdata LIST_HEAD(huge_boot_pages); /* for command line parsing */ @@ -2152,11 +2146,17 @@ int dissolve_free_huge_pages(unsigned long start_pfn, unsigned long end_pfn) unsigned long pfn; struct page *page; int rc = 0; + unsigned int order; + struct hstate *h; if (!hugepages_supported()) return rc; - for (pfn = start_pfn; pfn < end_pfn; pfn += 1 << minimum_order) { + order = huge_page_order(&default_hstate); + for_each_hstate(h) + order = min(order, huge_page_order(h)); + + for (pfn = start_pfn; pfn < end_pfn; pfn += 1 << order) { page = pfn_to_page(pfn); rc = dissolve_free_huge_page(page); if (rc) @@ -3148,9 +3148,6 @@ static void __init hugetlb_init_hstates(void) struct hstate *h, *h2; for_each_hstate(h) { - if (minimum_order > huge_page_order(h)) - minimum_order = huge_page_order(h); - /* oversize hugepages were init'ed in early boot */ if (!hstate_is_gigantic(h)) hugetlb_hstate_alloc_pages(h); @@ -3175,7 +3172,6 @@ static void __init hugetlb_init_hstates(void) h->demote_order = h2->order; } } - VM_BUG_ON(minimum_order == UINT_MAX); } static void __init report_hugepages(void) |