Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752476AbaLXM34 (ORCPT ); Wed, 24 Dec 2014 07:29:56 -0500 Received: from us01smtprelay-2.synopsys.com ([198.182.60.111]:43441 "EHLO smtprelay.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752329AbaLXM3x convert rfc822-to-8bit (ORCPT ); Wed, 24 Dec 2014 07:29:53 -0500 From: Vineet Gupta To: "Kirill A. Shutemov" , "akpm@linux-foundation.org" CC: "peterz@infradead.org" , "mingo@kernel.org" , "davej@redhat.com" , "sasha.levin@oracle.com" , "hughd@google.com" , "linux-mm@kvack.org" , "linux-arch@vger.kernel.org" , "linux-kernel@vger.kernel.org" , Vineet Gupta Subject: Re: [PATCH 10/38] arc: drop _PAGE_FILE and pte_file()-related helpers Thread-Topic: [PATCH 10/38] arc: drop _PAGE_FILE and pte_file()-related helpers Thread-Index: AQHQH3SBz61hfi42akCCUjmFe20Ejw== Date: Wed, 24 Dec 2014 12:29:44 +0000 Message-ID: References: <1419423766-114457-1-git-send-email-kirill.shutemov@linux.intel.com> <1419423766-114457-11-git-send-email-kirill.shutemov@linux.intel.com> Accept-Language: en-US, en-IN Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.12.196.182] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Kirill, On Wednesday 24 December 2014 05:54 PM, Kirill A. Shutemov wrote: > We've replaced remap_file_pages(2) implementation with emulation. > Nobody creates non-linear mapping anymore. > > Signed-off-by: Kirill A. Shutemov > Cc: Vineet Gupta > --- > arch/arc/include/asm/pgtable.h | 15 ++------------- > 1 file changed, 2 insertions(+), 13 deletions(-) > > diff --git a/arch/arc/include/asm/pgtable.h b/arch/arc/include/asm/pgtable.h > index 6b0b7f7ef783..55694ee428d4 100644 > --- a/arch/arc/include/asm/pgtable.h > +++ b/arch/arc/include/asm/pgtable.h > @@ -61,7 +61,6 @@ > #define _PAGE_WRITE (1<<4) /* Page has user write perm (H) */ > #define _PAGE_READ (1<<5) /* Page has user read perm (H) */ > #define _PAGE_MODIFIED (1<<6) /* Page modified (dirty) (S) */ > -#define _PAGE_FILE (1<<7) /* page cache/ swap (S) */ > #define _PAGE_GLOBAL (1<<8) /* Page is global (H) */ > #define _PAGE_PRESENT (1<<10) /* TLB entry is valid (H) */ > > @@ -73,7 +72,6 @@ > #define _PAGE_READ (1<<3) /* Page has user read perm (H) */ > #define _PAGE_ACCESSED (1<<4) /* Page is accessed (S) */ > #define _PAGE_MODIFIED (1<<5) /* Page modified (dirty) (S) */ > -#define _PAGE_FILE (1<<6) /* page cache/ swap (S) */ > #define _PAGE_GLOBAL (1<<8) /* Page is global (H) */ > #define _PAGE_PRESENT (1<<9) /* TLB entry is valid (H) */ > #define _PAGE_SHARED_CODE (1<<11) /* Shared Code page with cmn vaddr > @@ -268,15 +266,6 @@ static inline void pmd_set(pmd_t *pmdp, pte_t *ptep) > pte; \ > }) > > -/* TBD: Non linear mapping stuff */ > -static inline int pte_file(pte_t pte) > -{ > - return pte_val(pte) & _PAGE_FILE; > -} > - > -#define PTE_FILE_MAX_BITS 30 > -#define pgoff_to_pte(x) __pte(x) > -#define pte_to_pgoff(x) (pte_val(x) >> 2) > #define pte_pfn(pte) (pte_val(pte) >> PAGE_SHIFT) > #define pfn_pte(pfn, prot) (__pte(((pfn) << PAGE_SHIFT) | pgprot_val(prot))) > #define __pte_index(addr) (((addr) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)) > @@ -358,13 +347,13 @@ static inline void set_pte_at(struct mm_struct *mm, unsigned long addr, > #endif > > extern void paging_init(void); > -extern pgd_t swapper_pg_dir[] __aligned(PAGE_SIZE); > +xtern pgd_t swapper_pg_dir[] __aligned(PAGE_SIZE); I don't think u intended that. Otherwise Acked-by: Vineet Gupta Thx, -Vineet -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/