From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx124.postini.com [74.125.245.124]) by kanga.kvack.org (Postfix) with SMTP id 4F5786B0069 for ; Thu, 9 May 2013 05:51:41 -0400 (EDT) Received: by mail-ob0-f173.google.com with SMTP id 6so2737231oba.32 for ; Thu, 09 May 2013 02:51:40 -0700 (PDT) From: wenchaolinux@gmail.com Subject: [RFC PATCH V1 4/6] mm : export is_cow_mapping() Date: Thu, 9 May 2013 17:50:09 +0800 Message-Id: <1368093011-4867-5-git-send-email-wenchaolinux@gmail.com> In-Reply-To: <1368093011-4867-1-git-send-email-wenchaolinux@gmail.com> References: <1368093011-4867-1-git-send-email-wenchaolinux@gmail.com> Sender: owner-linux-mm@kvack.org List-ID: To: linux-mm@kvack.org Cc: akpm@linux-foundation.org, mgorman@suse.de, hughd@google.com, walken@google.com, viro@zeniv.linux.org.uk, kirill.shutemov@linux.intel.com, xiaoguangrong@linux.vnet.ibm.com, anthony@codemonkey.ws, stefanha@gmail.com, Wenchao Xia From: Wenchao Xia Signed-off-by: Wenchao Xia --- include/linux/mm.h | 1 + mm/memory.c | 2 +- 2 files changed, 2 insertions(+), 1 deletions(-) diff --git a/include/linux/mm.h b/include/linux/mm.h index 5071a44..9bd01f5 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -965,6 +965,7 @@ void free_pgd_range(struct mmu_gather *tlb, unsigned long addr, unsigned long end, unsigned long floor, unsigned long ceiling); void init_rss_vec(int *rss); void add_mm_rss_vec(struct mm_struct *mm, int *rss); +bool is_cow_mapping(vm_flags_t flags); unsigned long copy_one_pte(struct mm_struct *dst_mm, struct mm_struct *src_mm, pte_t *dst_pte, pte_t *src_pte, unsigned long dst_addr, unsigned long src_addr, diff --git a/mm/memory.c b/mm/memory.c index add1562..e5456e1 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -723,7 +723,7 @@ static void print_bad_pte(struct vm_area_struct *vma, unsigned long addr, add_taint(TAINT_BAD_PAGE, LOCKDEP_NOW_UNRELIABLE); } -static inline bool is_cow_mapping(vm_flags_t flags) +bool is_cow_mapping(vm_flags_t flags) { return (flags & (VM_SHARED | VM_MAYWRITE)) == VM_MAYWRITE; } -- 1.7.1 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org