[07/27] mm/hugetlb: use online nodes for bootmem allocation

Message ID	20250127232207.3888640-8-fvdl@google.com (mailing list archive)
State	New
Headers	show Return-Path: <owner-linux-mm@kvack.org> Date: Mon, 27 Jan 2025 23:21:47 +0000 In-Reply-To: <20250127232207.3888640-1-fvdl@google.com> Mime-Version: 1.0 References: <20250127232207.3888640-1-fvdl@google.com> Message-ID: <20250127232207.3888640-8-fvdl@google.com> Subject: [PATCH 07/27] mm/hugetlb: use online nodes for bootmem allocation From: Frank van der Linden <fvdl@google.com> To: akpm@linux-foundation.org, muchun.song@linux.dev, linux-mm@kvack.org, linux-kernel@vger.kernel.org Cc: yuzhao@google.com, usama.arif@bytedance.com, joao.m.martins@oracle.com, roman.gushchin@linux.dev, Frank van der Linden <fvdl@google.com> Content-Type: text/plain; charset="UTF-8" Sender: owner-linux-mm@kvack.org Precedence: bulk
Series	hugetlb/CMA improvements for large systems \| expand [00/27] hugetlb/CMA improvements for large systems [01/27] mm/cma: export total and free number of pages for CMA areas [02/27] mm, cma: support multiple contiguous ranges, if requested [03/27] mm/cma: introduce cma_intersects function [04/27] mm, hugetlb: use cma_declare_contiguous_multi [05/27] mm/hugetlb: fix round-robin bootmem allocation [06/27] mm/hugetlb: remove redundant __ClearPageReserved [07/27] mm/hugetlb: use online nodes for bootmem allocation [08/27] mm/hugetlb: convert cmdline parameters from setup to early [09/27] x86/mm: make register_page_bootmem_memmap handle PTE mappings [10/27] mm/bootmem_info: export register_page_bootmem_memmap [11/27] mm/sparse: allow for alternate vmemmap section init at boot [12/27] mm/hugetlb: set migratetype for bootmem folios [13/27] mm: define __init_reserved_page_zone function [14/27] mm/hugetlb: check bootmem pages for zone intersections [15/27] mm/sparse: add vmemmap_*_hvo functions [16/27] mm/hugetlb: deal with multiple calls to hugetlb_bootmem_alloc [17/27] mm/hugetlb: move huge_boot_pages list init to hugetlb_bootmem_alloc [18/27] mm/hugetlb: add pre-HVO framework [19/27] mm/hugetlb_vmemmap: fix hugetlb_vmemmap_restore_folios definition [20/27] mm/hugetlb: do pre-HVO for bootmem allocated pages [21/27] x86/setup: call hugetlb_bootmem_alloc early [22/27] x86/mm: set ARCH_WANT_SPARSEMEM_VMEMMAP_PREINIT [23/27] mm/cma: simplify zone intersection check [24/27] mm/cma: introduce a cma validate function [25/27] mm/cma: introduce interface for early reservations [26/27] mm/hugetlb: add hugetlb_cma_only cmdline option [27/27] mm/hugetlb: enable bootmem allocation from CMA areas

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20250127232207.3888640-8-fvdl@google.com (mailing list archive)

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New

Headers

Date: Mon, 27 Jan 2025 23:21:47 +0000
In-Reply-To: <20250127232207.3888640-1-fvdl@google.com>
Mime-Version: 1.0
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Message-ID: <20250127232207.3888640-8-fvdl@google.com>
Subject: [PATCH 07/27] mm/hugetlb: use online nodes for bootmem allocation
From: Frank van der Linden <fvdl@google.com>
To: akpm@linux-foundation.org, muchun.song@linux.dev, linux-mm@kvack.org,
	linux-kernel@vger.kernel.org
Cc: yuzhao@google.com, usama.arif@bytedance.com, joao.m.martins@oracle.com,
	roman.gushchin@linux.dev, Frank van der Linden <fvdl@google.com>
Content-Type: text/plain; charset="UTF-8"
Sender: owner-linux-mm@kvack.org
Precedence: bulk

Series

hugetlb/CMA improvements for large systems | expand

Commit Message

Frank van der Linden Jan. 27, 2025, 11:21 p.m. UTC

Later commits will move hugetlb bootmem allocation to earlier
in init, when N_MEMORY has not yet been set on nodes. Use
online nodes instead. At most, this wastes just a few cycles
once during boot (and most likely none).

Signed-off-by: Frank van der Linden <fvdl@google.com>
---
 mm/hugetlb.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 42d8334d13bb..a67339ca65b4 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -3152,7 +3152,7 @@  int __alloc_bootmem_huge_page(struct hstate *h, int nid)
 		goto found;
 	}
 	/* allocate from next node when distributing huge pages */
-	for_each_node_mask_to_alloc(&h->next_nid_to_alloc, nr_nodes, node, &node_states[N_MEMORY]) {
+	for_each_node_mask_to_alloc(&h->next_nid_to_alloc, nr_nodes, node, &node_states[N_ONLINE]) {
 		m = memblock_alloc_try_nid_raw(
 				huge_page_size(h), huge_page_size(h),
 				0, MEMBLOCK_ALLOC_ACCESSIBLE, node);
@@ -4550,8 +4550,8 @@  void __init hugetlb_add_hstate(unsigned int order)
 	for (i = 0; i < MAX_NUMNODES; ++i)
 		INIT_LIST_HEAD(&h->hugepage_freelists[i]);
 	INIT_LIST_HEAD(&h->hugepage_activelist);
-	h->next_nid_to_alloc = first_memory_node;
-	h->next_nid_to_free = first_memory_node;
+	h->next_nid_to_alloc = first_online_node;
+	h->next_nid_to_free = first_online_node;
 	snprintf(h->name, HSTATE_NAME_LEN, "hugepages-%lukB",
 					huge_page_size(h)/SZ_1K);

[07/27] mm/hugetlb: use online nodes for bootmem allocation

Commit Message

Patch