From: Mike Rapoport <rppt@linux.ibm.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Nicholas Piggin <npiggin@gmail.com>,
Tony Luck <tony.luck@intel.com>,
Yoshinori Sato <ysato@users.sourceforge.jp>,
linux-arch@vger.kernel.org, linux-ia64@vger.kernel.org,
linux-sh@vger.kernel.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org, Mike Rapoport <rppt@linux.ibm.com>
Subject: [PATCH 3/3] sh: switch to generic version of pte allocation
Date: Thu, 8 Aug 2019 10:52:08 +0300 [thread overview]
Message-ID: <1565250728-21721-4-git-send-email-rppt@linux.ibm.com> (raw)
In-Reply-To: <1565250728-21721-1-git-send-email-rppt@linux.ibm.com>
The sh implementation pte_alloc_one(), pte_alloc_one_kernel(),
pte_free_kernel() and pte_free() is identical to the generic except of lack
of __GFP_ACCOUNT for the user PTEs allocation.
Switch sh to use generic version of these functions.
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
---
arch/sh/include/asm/pgalloc.h | 34 +---------------------------------
1 file changed, 1 insertion(+), 33 deletions(-)
diff --git a/arch/sh/include/asm/pgalloc.h b/arch/sh/include/asm/pgalloc.h
index 9e15054..8c6341a 100644
--- a/arch/sh/include/asm/pgalloc.h
+++ b/arch/sh/include/asm/pgalloc.h
@@ -3,6 +3,7 @@
#define __ASM_SH_PGALLOC_H
#include <asm/page.h>
+#include <asm-generic/pgalloc.h>
extern pgd_t *pgd_alloc(struct mm_struct *);
extern void pgd_free(struct mm_struct *mm, pgd_t *pgd);
@@ -26,39 +27,6 @@ static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
}
#define pmd_pgtable(pmd) pmd_page(pmd)
-/*
- * Allocate and free page tables.
- */
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
-{
- return (pte_t *)__get_free_page(GFP_KERNEL | __GFP_ZERO);
-}
-
-static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
-{
- struct page *page;
-
- page = alloc_page(GFP_KERNEL | __GFP_ZERO);
- if (!page)
- return NULL;
- if (!pgtable_page_ctor(page)) {
- __free_page(page);
- return NULL;
- }
- return page;
-}
-
-static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
-{
- free_page((unsigned long)pte);
-}
-
-static inline void pte_free(struct mm_struct *mm, pgtable_t pte)
-{
- pgtable_page_dtor(pte);
- __free_page(pte);
-}
-
#define __pte_free_tlb(tlb,pte,addr) \
do { \
pgtable_page_dtor(pte); \
--
2.7.4
prev parent reply other threads:[~2019-08-08 7:52 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-08 7:52 [PATCH 0/3] mm: remove quicklist page table caches Mike Rapoport
2019-08-08 7:52 ` [PATCH 1/3] " Mike Rapoport
2019-08-08 7:52 ` [PATCH 2/3] ia64: switch to generic version of pte allocation Mike Rapoport
2019-08-08 7:52 ` Mike Rapoport [this message]
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