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From: Muchun Song <songmuchun@bytedance.com>
To: Oscar Salvador <osalvador@suse.de>,
	Andrew Morton <akpm@linux-foundation.org>,
	Mike Rapoport <rppt@kernel.org>
Cc: Qi Zheng <qi.zheng@linux.dev>, Lance Yang <lance.yang@linux.dev>,
	James Houghton <jthoughton@google.com>,
	David Hildenbrand <david@kernel.org>,
	Muchun Song <muchun.song@linux.dev>,
	Yili Zhang <zhangyili01@baidu.com>,
	Kiryl Shutsemau <kas@kernel.org>,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org,
	Muchun Song <songmuchun@bytedance.com>
Subject: [PATCH v4 07/13] mm: hugetlb_vmemmap: rename vmemmap_remap_pte() to vmemmap_optimize_pte()
Date: Sat,  7 Nov 2026 10:27:50 +0800	[thread overview]
Message-ID: <20261107022756.77731-8-songmuchun@bytedance.com> (raw)
In-Reply-To: <20261107022756.77731-1-songmuchun@bytedance.com>

Both optimization and restoration update vmemmap PTEs by remapping them,
so "remap" does not identify the callback's role.  Use "optimize" for the
optimization callback to match "restore" and make the two directions
explicit and consistent.

No functional change intended.

Signed-off-by: Muchun Song <songmuchun@bytedance.com>
Reviewed-by: Lance Yang <lance.yang@linux.dev>
Reviewed-by: Qi Zheng <qi.zheng@linux.dev>
Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Oscar Salvador <osalvador@suse.de>
Tested-by: Andrew Morton <akpm@linux-foundation.org>
---
v4:
- Collect Reviewed-by from Oscar Salvador
- Collect Tested-by from Andrew Morton

v3:
- Use two tabs for the renamed helper parameter continuation (suggested by
  Mike Rapoport)
- Collect Reviewed-by from Mike Rapoport

v2:
- Collect Reviewed-by from Lance Yang and Qi Zheng
---
 mm/hugetlb_vmemmap.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/mm/hugetlb_vmemmap.c b/mm/hugetlb_vmemmap.c
index d58f7a369c9c..7a3af4fd285b 100644
--- a/mm/hugetlb_vmemmap.c
+++ b/mm/hugetlb_vmemmap.c
@@ -213,8 +213,8 @@ static struct page *vmemmap_dup_page_from_list(const struct page *src,
 	return dst;
 }
 
-static void vmemmap_remap_pte(pte_t *pte, unsigned long addr,
-			      struct vmemmap_remap_walk *walk)
+static void vmemmap_optimize_pte(pte_t *pte, unsigned long addr,
+		struct vmemmap_remap_walk *walk)
 {
 	struct page *page = pte_page(ptep_get(pte));
 	pte_t entry;
@@ -302,7 +302,7 @@ static int vmemmap_remap_free(unsigned long start, unsigned long end,
 {
 	int ret;
 	struct vmemmap_remap_walk walk = {
-		.remap_pte	= vmemmap_remap_pte,
+		.remap_pte	= vmemmap_optimize_pte,
 		.vmemmap_tail	= vmemmap_tail,
 		.vmemmap_pages	= vmemmap_pages,
 		.flags		= flags,
-- 
2.54.0


  parent reply	other threads:[~2026-11-07  2:29 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-11-07  2:27 [PATCH v4 00/13] mm: Decouple folio-based vmemmap optimization from HugeTLB Muchun Song
2026-11-07  2:27 ` [PATCH v4 01/13] mm: hugetlb_vmemmap: fix OOM during head page allocation Muchun Song
2026-11-07 17:16   ` Oscar Salvador (SUSE)
2026-11-07  2:27 ` [PATCH v4 02/13] mm: hugetlb_vmemmap: remove HugeTLB-specific vmemmap optimization macros Muchun Song
2026-11-07  2:27 ` [PATCH v4 03/13] mm: hugetlb_vmemmap: unify VMEMMAP_{SPLIT,REMAP}_NO_TLB_FLUSH Muchun Song
2026-11-07  2:27 ` [PATCH v4 04/13] mm: hugetlb_vmemmap: simplify vmemmap head page handling Muchun Song
2026-11-07  2:27 ` [PATCH v4 05/13] mm: hugetlb_vmemmap: generalize vmemmap page allocation Muchun Song
2026-11-07  2:27 ` [PATCH v4 06/13] mm: hugetlb_vmemmap: unify writable vmemmap page preparation Muchun Song
2026-11-07  2:27 ` Muchun Song [this message]
2026-11-07  2:27 ` [PATCH v4 08/13] mm: hugetlb_vmemmap: simplify shared tail page handling Muchun Song
2026-11-07  2:27 ` [PATCH v4 09/13] mm: hugetlb_vmemmap: move alloc_vmemmap_page_list() next to its free helper Muchun Song
2026-11-07  2:27 ` [PATCH v4 10/13] mm: hugetlb_vmemmap: make vmemmap optimization folio-oriented Muchun Song
2026-11-07  2:27 ` [PATCH v4 11/13] mm: hugetlb_vmemmap: make vmemmap restoration folio-oriented Muchun Song
2026-11-07  2:27 ` [PATCH v4 12/13] mm: hugetlb_vmemmap: unify vmemmap range restoration Muchun Song
2026-11-07  2:27 ` [PATCH v4 13/13] mm: hugetlb_vmemmap: make vmemmap PTE conversion folio-oriented Muchun Song
2026-11-07  3:53 ` [PATCH v4 00/13] mm: Decouple folio-based vmemmap optimization from HugeTLB Andrew Morton

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