diff options
Diffstat (limited to 'mm/hugetlb.c')
| -rw-r--r-- | mm/hugetlb.c | 61 |
1 files changed, 29 insertions, 32 deletions
diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 4137fb67cd79..a8959667f539 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -1157,6 +1157,7 @@ static struct page *alloc_fresh_gigantic_page_node(struct hstate *h, int nid) if (page) { prep_compound_gigantic_page(page, huge_page_order(h)); prep_new_huge_page(h, page, nid); + put_page(page); /* free it into the hugepage allocator */ } return page; @@ -1304,7 +1305,6 @@ static void prep_new_huge_page(struct hstate *h, struct page *page, int nid) h->nr_huge_pages++; h->nr_huge_pages_node[nid]++; spin_unlock(&hugetlb_lock); - put_page(page); /* free it into the hugepage allocator */ } static void prep_compound_gigantic_page(struct page *page, unsigned int order) @@ -1381,41 +1381,49 @@ pgoff_t __basepage_index(struct page *page) return (index << compound_order(page_head)) + compound_idx; } -static struct page *alloc_fresh_huge_page_node(struct hstate *h, int nid) +static struct page *__hugetlb_alloc_buddy_huge_page(struct hstate *h, + gfp_t gfp_mask, int nid, nodemask_t *nmask) { + int order = huge_page_order(h); struct page *page; - page = __alloc_pages_node(nid, - htlb_alloc_mask(h)|__GFP_COMP|__GFP_THISNODE| - __GFP_RETRY_MAYFAIL|__GFP_NOWARN, - huge_page_order(h)); - if (page) { - prep_new_huge_page(h, page, nid); - } + gfp_mask |= __GFP_COMP|__GFP_RETRY_MAYFAIL|__GFP_NOWARN; + if (nid == NUMA_NO_NODE) + nid = numa_mem_id(); + page = __alloc_pages_nodemask(gfp_mask, order, nid, nmask); + if (page) + __count_vm_event(HTLB_BUDDY_PGALLOC); + else + __count_vm_event(HTLB_BUDDY_PGALLOC_FAIL); return page; } +/* + * Allocates a fresh page to the hugetlb allocator pool in the node interleaved + * manner. + */ static int alloc_fresh_huge_page(struct hstate *h, nodemask_t *nodes_allowed) { struct page *page; int nr_nodes, node; - int ret = 0; + gfp_t gfp_mask = htlb_alloc_mask(h) | __GFP_THISNODE; for_each_node_mask_to_alloc(h, nr_nodes, node, nodes_allowed) { - page = alloc_fresh_huge_page_node(h, node); - if (page) { - ret = 1; + page = __hugetlb_alloc_buddy_huge_page(h, gfp_mask, + node, nodes_allowed); + if (page) break; - } + } - if (ret) - count_vm_event(HTLB_BUDDY_PGALLOC); - else - count_vm_event(HTLB_BUDDY_PGALLOC_FAIL); + if (!page) + return 0; - return ret; + prep_new_huge_page(h, page, page_to_nid(page)); + put_page(page); /* free it into the hugepage allocator */ + + return 1; } /* @@ -1523,17 +1531,6 @@ int dissolve_free_huge_pages(unsigned long start_pfn, unsigned long end_pfn) return rc; } -static struct page *__hugetlb_alloc_buddy_huge_page(struct hstate *h, - gfp_t gfp_mask, int nid, nodemask_t *nmask) -{ - int order = huge_page_order(h); - - gfp_mask |= __GFP_COMP|__GFP_RETRY_MAYFAIL|__GFP_NOWARN; - if (nid == NUMA_NO_NODE) - nid = numa_mem_id(); - return __alloc_pages_nodemask(gfp_mask, order, nid, nmask); -} - static struct page *__alloc_buddy_huge_page(struct hstate *h, gfp_t gfp_mask, int nid, nodemask_t *nmask) { @@ -1589,11 +1586,9 @@ static struct page *__alloc_buddy_huge_page(struct hstate *h, gfp_t gfp_mask, */ h->nr_huge_pages_node[r_nid]++; h->surplus_huge_pages_node[r_nid]++; - __count_vm_event(HTLB_BUDDY_PGALLOC); } else { h->nr_huge_pages--; h->surplus_huge_pages--; - __count_vm_event(HTLB_BUDDY_PGALLOC_FAIL); } spin_unlock(&hugetlb_lock); @@ -2148,6 +2143,8 @@ static void __init gather_bootmem_prealloc(void) prep_compound_huge_page(page, h->order); WARN_ON(PageReserved(page)); prep_new_huge_page(h, page, page_to_nid(page)); + put_page(page); /* free it into the hugepage allocator */ + /* * If we had gigantic hugepages allocated at boot time, we need * to restore the 'stolen' pages to totalram_pages in order to |