From: Mike Rapoport <rppt@linux.ibm.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Arnd Bergmann <arnd@arndb.de>,
Anshuman Khandual <anshuman.khandual@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Geert Uytterhoeven <geert@linux-m68k.org>,
Greentime Hu <green.hu@gmail.com>, Guan Xuetao <gxt@pku.edu.cn>,
Guo Ren <guoren@kernel.org>, Helge Deller <deller@gmx.de>,
Ley Foon Tan <lftan@altera.com>,
Matthew Wilcox <willy@infradead.org>,
Matt Turner <mattst88@gmail.com>,
Michael Ellerman <mpe@ellerman.id.au>,
Michal Hocko <mhocko@suse.com>,
Palmer Dabbelt <palmer@sifive.com>,
Paul Burton <paul.burton@mips.com>,
Richard Kuo <rkuo@codeaurora.org>,
Richard Weinberger <richard@nod.at>,
Russell King <linux@armlinux.org.uk>,
Sam Creasey <sammy@sammy.net>,
x86@kernel.org, linux-alpha@vger.kernel.org,
linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-hexagon@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org,
linux-mm@kvack.org, linux-parisc@vger.kernel.org,
linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org,
linux-um@lists.infradead.org, nios2-dev@lists.rocketboards.org,
Mike Rapoport <rppt@linux.ibm.com>
Subject: [PATCH v2 11/14] parisc: switch to generic version of pte allocation
Date: Wed, 8 May 2019 09:17:08 +0300 [thread overview]
Message-ID: <1557296232-15361-12-git-send-email-rppt@linux.ibm.com> (raw)
In-Reply-To: <1557296232-15361-1-git-send-email-rppt@linux.ibm.com>
parisc allocates PTE pages with __get_free_page() and uses
GFP_KERNEL | __GFP_ZERO for the allocations.
Switch it to the generic version that does exactly the same thing for the
kernel page tables and adds __GFP_ACCOUNT for the user PTEs.
The pte_free_kernel() and pte_free() versions on are identical to the
generic ones and can be simply dropped.
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
---
arch/parisc/include/asm/pgalloc.h | 33 ++-------------------------------
1 file changed, 2 insertions(+), 31 deletions(-)
diff --git a/arch/parisc/include/asm/pgalloc.h b/arch/parisc/include/asm/pgalloc.h
index ea75cc9..4f2059a 100644
--- a/arch/parisc/include/asm/pgalloc.h
+++ b/arch/parisc/include/asm/pgalloc.h
@@ -10,6 +10,8 @@
#include <asm/cache.h>
+#include <asm-generic/pgalloc.h> /* for pte_{alloc,free}_one */
+
/* Allocate the top level pgd (page directory)
*
* Here (for 64 bit kernels) we implement a Hybrid L2/L3 scheme: we
@@ -122,37 +124,6 @@ pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte)
pmd_populate_kernel(mm, pmd, page_address(pte_page))
#define pmd_pgtable(pmd) pmd_page(pmd)
-static inline pgtable_t
-pte_alloc_one(struct mm_struct *mm)
-{
- struct 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 pte_t *
-pte_alloc_one_kernel(struct mm_struct *mm)
-{
- pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO);
- return pte;
-}
-
-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, struct page *pte)
-{
- pgtable_page_dtor(pte);
- pte_free_kernel(mm, page_address(pte));
-}
-
#define check_pgt_cache() do { } while (0)
#endif
--
2.7.4
next prev parent reply other threads:[~2019-05-08 6:18 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-08 6:16 [PATCH v2 00/14] introduce generic pte_{alloc,free}_one[_kernel] Mike Rapoport
2019-05-08 6:16 ` [PATCH v2 01/14] asm-generic, x86: " Mike Rapoport
2019-05-08 6:16 ` [PATCH v2 02/14] alpha: switch to generic version of pte allocation Mike Rapoport
2019-05-08 6:17 ` [PATCH v2 03/14] arm: " Mike Rapoport
2019-05-08 6:17 ` [PATCH v2 04/14] arm64: " Mike Rapoport
2019-05-08 6:17 ` [PATCH v2 05/14] csky: " Mike Rapoport
2019-05-08 6:17 ` [PATCH v2 06/14] hexagon: " Mike Rapoport
2019-05-08 6:17 ` [PATCH v2 07/14] m68k: sun3: " Mike Rapoport
2019-05-08 6:17 ` [PATCH v2 08/14] mips: " Mike Rapoport
2019-05-08 6:17 ` [PATCH v2 09/14] nds32: " Mike Rapoport
2019-05-08 6:17 ` [PATCH v2 10/14] nios2: " Mike Rapoport
2019-05-08 6:17 ` Mike Rapoport [this message]
2019-05-08 6:17 ` [PATCH v2 12/14] riscv: " Mike Rapoport
2019-05-08 6:17 ` [PATCH v2 13/14] um: " Mike Rapoport
2019-05-08 6:17 ` [PATCH v2 14/14] unicore32: " Mike Rapoport
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