linux-kernel - [PATCH 5/7] m68k: Thread mm_struct throughout page table allocation

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Message-Id: <20200428194449.22615-6-willy@infradead.org>
Date:   Tue, 28 Apr 2020 12:44:47 -0700
From:   Matthew Wilcox <willy@...radead.org>
To:     linux-mm@...ck.org
Cc:     "Matthew Wilcox (Oracle)" <willy@...radead.org>,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        Will Deacon <will@...nel.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Russell King <linux@...linux.org.uk>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        linux-m68k@...ts.linux-m68k.org
Subject: [PATCH 5/7] m68k: Thread mm_struct throughout page table allocation

From: "Matthew Wilcox (Oracle)" <willy@...radead.org>

An upcoming patch will pass mm_struct to the page table constructor.
Make sure m68k has the appropriate mm_struct at the point it needs to
call the constructor.

Signed-off-by: Matthew Wilcox (Oracle) <willy@...radead.org>
---
 arch/m68k/include/asm/motorola_pgalloc.h | 10 +++++-----
 arch/m68k/mm/motorola.c                  |  2 +-
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/m68k/include/asm/motorola_pgalloc.h b/arch/m68k/include/asm/motorola_pgalloc.h
index c66e42917912..dbac0c597397 100644
--- a/arch/m68k/include/asm/motorola_pgalloc.h
+++ b/arch/m68k/include/asm/motorola_pgalloc.h
@@ -15,12 +15,12 @@ enum m68k_table_types {
 };
 
 extern void init_pointer_table(void *table, int type);
-extern void *get_pointer_table(int type);
+extern void *get_pointer_table(int type, struct mm_struct *mm);
 extern int free_pointer_table(void *table, int type);
 
 static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 {
-	return get_pointer_table(TABLE_PTE);
+	return get_pointer_table(TABLE_PTE, mm);
 }
 
 static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
@@ -30,7 +30,7 @@ static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
 
 static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
 {
-	return get_pointer_table(TABLE_PTE);
+	return get_pointer_table(TABLE_PTE, mm);
 }
 
 static inline void pte_free(struct mm_struct *mm, pgtable_t pgtable)
@@ -47,7 +47,7 @@ static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t pgtable,
 
 static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
 {
-	return get_pointer_table(TABLE_PMD);
+	return get_pointer_table(TABLE_PMD, mm);
 }
 
 static inline int pmd_free(struct mm_struct *mm, pmd_t *pmd)
@@ -69,7 +69,7 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
 
 static inline pgd_t *pgd_alloc(struct mm_struct *mm)
 {
-	return get_pointer_table(TABLE_PGD);
+	return get_pointer_table(TABLE_PGD, mm);
 }
 
 
diff --git a/arch/m68k/mm/motorola.c b/arch/m68k/mm/motorola.c
index fc16190ec2d6..7743480be0cf 100644
--- a/arch/m68k/mm/motorola.c
+++ b/arch/m68k/mm/motorola.c
@@ -113,7 +113,7 @@ void __init init_pointer_table(void *table, int type)
 	return;
 }
 
-void *get_pointer_table(int type)
+void *get_pointer_table(int type, struct mm_struct *mm)
 {
 	ptable_desc *dp = ptable_list[type].next;
 	unsigned int mask = list_empty(&ptable_list[type]) ? 0 : PD_MARKBITS(dp);
-- 
2.26.2