diff mbox series

[01/45] arch/x86: Drop own definition of pgd,p4d_leaf

Message ID	20240704043132.28501-2-osalvador@suse.de (mailing list archive)
State	New
Headers	show Return-Path: <owner-linux-mm@kvack.org> From: Oscar Salvador <osalvador@suse.de> To: Andrew Morton <akpm@linux-foundation.org> Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, Peter Xu <peterx@redhat.com>, Muchun Song <muchun.song@linux.dev>, David Hildenbrand <david@redhat.com>, SeongJae Park <sj@kernel.org>, Miaohe Lin <linmiaohe@huawei.com>, Michal Hocko <mhocko@suse.com>, Matthew Wilcox <willy@infradead.org>, Christophe Leroy <christophe.leroy@csgroup.eu>, Oscar Salvador <osalvador@suse.de> Subject: [PATCH 01/45] arch/x86: Drop own definition of pgd,p4d_leaf Date: Thu, 4 Jul 2024 06:30:48 +0200 Message-ID: <20240704043132.28501-2-osalvador@suse.de> In-Reply-To: <20240704043132.28501-1-osalvador@suse.de> References: <20240704043132.28501-1-osalvador@suse.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: owner-linux-mm@kvack.org Precedence: bulk
Series	hugetlb pagewalk unification \| expand [00/45] hugetlb pagewalk unification [01/45] arch/x86: Drop own definition of pgd,p4d_leaf [02/45] mm: Add {pmd,pud}_huge_lock helper [03/45] mm/pagewalk: Move vma_pgtable_walk_begin and vma_pgtable_walk_end upfront [04/45] mm/pagewalk: Only call pud_entry when we have a pud leaf [05/45] mm/pagewalk: Enable walk_pmd_range to handle cont-pmds [06/45] mm/pagewalk: Do not try to split non-thp pud or pmd leafs [07/45] arch/s390: Enable __s390_enable_skey_pmd to handle hugetlb vmas [08/45] fs/proc: Enable smaps_pmd_entry to handle PMD-mapped hugetlb vmas [09/45] mm: Implement pud-version functions for swap and vm_normal_page_pud [10/45] fs/proc: Create smaps_pud_range to handle PUD-mapped hugetlb vmas [11/45] fs/proc: Enable smaps_pte_entry to handle cont-pte mapped hugetlb vmas [12/45] fs/proc: Enable pagemap_pmd_range to handle hugetlb vmas [13/45] mm: Implement pud-version uffd functions [14/45] fs/proc: Create pagemap_pud_range to handle PUD-mapped hugetlb vmas [15/45] fs/proc: Adjust pte_to_pagemap_entry for hugetlb vmas [16/45] fs/proc: Enable pagemap_scan_pmd_entry to handle hugetlb vmas [17/45] mm: Implement pud-version for pud_mkinvalid and pudp_establish [18/45] fs/proc: Create pagemap_scan_pud_entry to handle PUD-mapped hugetlb vmas [19/45] fs/proc: Enable gather_pte_stats to handle hugetlb vmas [20/45] fs/proc: Enable gather_pte_stats to handle cont-pte mapped hugetlb vmas [21/45] fs/proc: Create gather_pud_stats to handle PUD-mapped hugetlb pages [22/45] mm/mempolicy: Enable queue_folios_pmd to handle hugetlb vmas [23/45] mm/mempolicy: Create queue_folios_pud to handle PUD-mapped hugetlb vmas [24/45] mm/memory_failure: Enable check_hwpoisoned_pmd_entry to handle hugetlb vmas [25/45] mm/memory-failure: Create check_hwpoisoned_pud_entry to handle PUD-mapped hugetlb vmas [26/45] mm/damon: Enable damon_young_pmd_entry to handle hugetlb vmas [27/45] mm/damon: Create damon_young_pud_entry to handle PUD-mapped hugetlb vmas [28/45] mm/damon: Enable damon_mkold_pmd_entry to handle hugetlb vmas [29/45] mm/damon: Create damon_mkold_pud_entry to handle PUD-mapped hugetlb vmas [30/45] mm,mincore: Enable mincore_pte_range to handle hugetlb vmas [31/45] mm/mincore: Create mincore_pud_range to handle PUD-mapped hugetlb vmas [32/45] mm/hmm: Enable hmm_vma_walk_pmd, to handle hugetlb vmas [33/45] mm/hmm: Enable hmm_vma_walk_pud to handle PUD-mapped hugetlb vmas [34/45] arch/powerpc: Skip hugetlb vmas in subpage_mark_vma_nohuge [35/45] arch/s390: Skip hugetlb vmas in thp_split_mm [36/45] fs/proc: Make clear_refs_test_walk skip hugetlb vmas [37/45] mm/lock: Make mlock_test_walk skip hugetlb vmas [38/45] mm/madvise: Make swapin_test_walk skip hugetlb vmas [39/45] mm/madvise: Make madvise_cold_test_walk skip hugetlb vmas [40/45] mm/madvise: Make madvise_free_test_walk skip hugetlb vmas [41/45] mm/migrate_device: Make migrate_vma_test_walk skip hugetlb vmas [42/45] mm/memcontrol: Make mem_cgroup_move_test_walk skip hugetlb vmas [43/45] mm/memcontrol: Make mem_cgroup_count_test_walk skip hugetlb vmas [44/45] mm/hugetlb_vmemmap: Make vmemmap_test_walk skip hugetlb vmas [45/45] mm: Delete all hugetlb_entry entries

Commit Message

Oscar Salvador July 4, 2024, 4:30 a.m. UTC

We provide generic definitions of pXd_leaf in pgtable.h when the arch
do not define their own, where the generic pXd_leaf always return false.

Although x86 defines {pgd,p4d}_leaf, they end up being a no-op, so drop them
and make them fallback to the generic one.

Signed-off-by: Oscar Salvador <osalvador@suse.de>
---
 arch/x86/include/asm/pgtable.h | 10 ----------
 1 file changed, 10 deletions(-)

diff mbox series

Patch

diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
index 65b8e5bb902c..772f778bac06 100644
--- a/arch/x86/include/asm/pgtable.h
+++ b/arch/x86/include/asm/pgtable.h
@@ -252,13 +252,6 @@  static inline unsigned long pgd_pfn(pgd_t pgd)
 	return (pgd_val(pgd) & PTE_PFN_MASK) >> PAGE_SHIFT;
 }
 
-#define p4d_leaf p4d_leaf
-static inline bool p4d_leaf(p4d_t p4d)
-{
-	/* No 512 GiB pages yet */
-	return 0;
-}
-
 #define pte_page(pte)	pfn_to_page(pte_pfn(pte))
 
 #define pmd_leaf pmd_leaf
@@ -1396,9 +1389,6 @@  static inline bool pgdp_maps_userspace(void *__ptr)
 	return (((ptr & ~PAGE_MASK) / sizeof(pgd_t)) < PGD_KERNEL_START);
 }
 
-#define pgd_leaf	pgd_leaf
-static inline bool pgd_leaf(pgd_t pgd) { return false; }
-
 #ifdef CONFIG_MITIGATION_PAGE_TABLE_ISOLATION
 /*
  * All top-level MITIGATION_PAGE_TABLE_ISOLATION page tables are order-1 pages