From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pg0-f71.google.com (mail-pg0-f71.google.com [74.125.83.71]) by kanga.kvack.org (Postfix) with ESMTP id 830ED6B0003 for ; Wed, 25 Apr 2018 00:41:32 -0400 (EDT) Received: by mail-pg0-f71.google.com with SMTP id x205so3774227pgx.19 for ; Tue, 24 Apr 2018 21:41:32 -0700 (PDT) Received: from mail-sor-f65.google.com (mail-sor-f65.google.com. [209.85.220.65]) by mx.google.com with SMTPS id x22-v6sor5816023pln.60.2018.04.24.21.41.29 for (Google Transport Security); Tue, 24 Apr 2018 21:41:30 -0700 (PDT) Date: Wed, 25 Apr 2018 10:13:26 +0530 From: Souptick Joarder Subject: [PATCH v2] mm: huge_memory: Change return type to vm_fault_t Message-ID: <20180425044326.GA21504@jordon-HP-15-Notebook-PC> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-linux-mm@kvack.org List-ID: To: akpm@linux-foundation.org, zi.yan@cs.rutgers.edu, dan.j.williams@intel.com, kirill.shutemov@linux.intel.com, ross.zwisler@linux.intel.com, n-horiguchi@ah.jp.nec.com, mhocko@suse.com, shli@fb.com Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org Use new return type vm_fault_t for fault handler. For now, this is just documenting that the function returns a VM_FAULT value rather than an errno. Once all instances are converted, vm_fault_t will become a distinct type. Commit 1c8f422059ae ("mm: change return type to vm_fault_t") Signed-off-by: Souptick Joarder Reviewed-by: Matthew Wilcox --- v2: Updated the change log include/linux/huge_mm.h | 5 +++-- mm/huge_memory.c | 4 ++-- 2 files changed, 5 insertions(+), 4 deletions(-) diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h index a8a1262..d3bbf6b 100644 --- a/include/linux/huge_mm.h +++ b/include/linux/huge_mm.h @@ -3,6 +3,7 @@ #define _LINUX_HUGE_MM_H #include +#include #include /* only for vma_is_dax() */ @@ -46,9 +47,9 @@ extern bool move_huge_pmd(struct vm_area_struct *vma, unsigned long old_addr, extern int change_huge_pmd(struct vm_area_struct *vma, pmd_t *pmd, unsigned long addr, pgprot_t newprot, int prot_numa); -int vmf_insert_pfn_pmd(struct vm_area_struct *vma, unsigned long addr, +vm_fault_t vmf_insert_pfn_pmd(struct vm_area_struct *vma, unsigned long addr, pmd_t *pmd, pfn_t pfn, bool write); -int vmf_insert_pfn_pud(struct vm_area_struct *vma, unsigned long addr, +vm_fault_t vmf_insert_pfn_pud(struct vm_area_struct *vma, unsigned long addr, pud_t *pud, pfn_t pfn, bool write); enum transparent_hugepage_flag { TRANSPARENT_HUGEPAGE_FLAG, diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 87ab9b8..1fe4705 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -755,7 +755,7 @@ static void insert_pfn_pmd(struct vm_area_struct *vma, unsigned long addr, spin_unlock(ptl); } -int vmf_insert_pfn_pmd(struct vm_area_struct *vma, unsigned long addr, +vm_fault_t vmf_insert_pfn_pmd(struct vm_area_struct *vma, unsigned long addr, pmd_t *pmd, pfn_t pfn, bool write) { pgprot_t pgprot = vma->vm_page_prot; @@ -815,7 +815,7 @@ static void insert_pfn_pud(struct vm_area_struct *vma, unsigned long addr, spin_unlock(ptl); } -int vmf_insert_pfn_pud(struct vm_area_struct *vma, unsigned long addr, +vm_fault_t vmf_insert_pfn_pud(struct vm_area_struct *vma, unsigned long addr, pud_t *pud, pfn_t pfn, bool write) { pgprot_t pgprot = vma->vm_page_prot; -- 1.9.1