diff --git a/mm/vmalloc.c b/mm/vmalloc.c index dfa8f09e7e9dd0..264a2627bea4e7 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -3515,8 +3515,6 @@ vm_area_alloc_pages(gfp_t gfp, int nid, unsigned int order, unsigned int nr_pages, struct page **pages) { unsigned int nr_allocated = 0; - gfp_t alloc_gfp = gfp; - bool nofail = gfp & __GFP_NOFAIL; struct page *page; int i; @@ -3527,9 +3525,6 @@ vm_area_alloc_pages(gfp_t gfp, int nid, * more permissive. */ if (!order) { - /* bulk allocator doesn't support nofail req. officially */ - gfp_t bulk_gfp = gfp & ~__GFP_NOFAIL; - while (nr_allocated < nr_pages) { unsigned int nr, nr_pages_request; @@ -3547,12 +3542,11 @@ vm_area_alloc_pages(gfp_t gfp, int nid, * but mempolicy wants to alloc memory by interleaving. */ if (IS_ENABLED(CONFIG_NUMA) && nid == NUMA_NO_NODE) - nr = alloc_pages_bulk_array_mempolicy_noprof(bulk_gfp, + nr = alloc_pages_bulk_array_mempolicy_noprof(gfp, nr_pages_request, pages + nr_allocated); - else - nr = alloc_pages_bulk_array_node_noprof(bulk_gfp, nid, + nr = alloc_pages_bulk_array_node_noprof(gfp, nid, nr_pages_request, pages + nr_allocated); @@ -3566,30 +3560,24 @@ vm_area_alloc_pages(gfp_t gfp, int nid, if (nr != nr_pages_request) break; } - } else if (gfp & __GFP_NOFAIL) { - /* - * Higher order nofail allocations are really expensive and - * potentially dangerous (pre-mature OOM, disruptive reclaim - * and compaction etc. - */ - alloc_gfp &= ~__GFP_NOFAIL; } /* High-order pages or fallback path if "bulk" fails. */ while (nr_allocated < nr_pages) { - if (!nofail && fatal_signal_pending(current)) + if (!(gfp & __GFP_NOFAIL) && fatal_signal_pending(current)) break; if (nid == NUMA_NO_NODE) - page = alloc_pages_noprof(alloc_gfp, order); + page = alloc_pages_noprof(gfp, order); else - page = alloc_pages_node_noprof(nid, alloc_gfp, order); + page = alloc_pages_node_noprof(nid, gfp, order); + if (unlikely(!page)) break; /* * Higher order allocations must be able to be treated as - * indepdenent small pages by callers (as they can with + * independent small pages by callers (as they can with * small-page vmallocs). Some drivers do their own refcounting * on vmalloc_to_page() pages, some use page->mapping, * page->lru, etc. @@ -3650,7 +3638,16 @@ static void *__vmalloc_area_node(struct vm_struct *area, gfp_t gfp_mask, set_vm_area_page_order(area, page_shift - PAGE_SHIFT); page_order = vm_area_page_order(area); - area->nr_pages = vm_area_alloc_pages(gfp_mask | __GFP_NOWARN, + /* + * Higher order nofail allocations are really expensive and + * potentially dangerous (pre-mature OOM, disruptive reclaim + * and compaction etc. + * + * Please note, the __vmalloc_node_range_noprof() falls-back + * to order-0 pages if high-order attempt is unsuccessful. + */ + area->nr_pages = vm_area_alloc_pages((page_order ? + gfp_mask & ~__GFP_NOFAIL : gfp_mask) | __GFP_NOWARN, node, page_order, nr_small_pages, area->pages); atomic_long_add(area->nr_pages, &nr_vmalloc_pages);