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[141.76.16.140]) by smtp.googlemail.com with ESMTPSA id w4sm12834302wmg.25.2017.03.13.15.14.41 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Mon, 13 Mar 2017 15:14:42 -0700 (PDT) From: Till Smejkal X-Google-Original-From: Till Smejkal To: Richard Henderson , Ivan Kokshaysky , Matt Turner , Vineet Gupta , Russell King , Catalin Marinas , Will Deacon , Steven Miao , Richard Kuo , Tony Luck , Fenghua Yu , James Hogan , Ralf Baechle , "James E.J. Bottomley" , Helge Deller , Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , Martin Schwidefsky , Heiko Carstens , Yoshinori Sato , Rich Felker , "David S. Miller" , Chris Metcalf , Thomas Gleixner , Ingo Molnar , "H. 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Bruce Fields" , Peter Zijlstra , Hugh Dickins , Arnaldo Carvalho de Melo , Alexander Shishkin , Jaroslav Kysela , Takashi Iwai Subject: [RFC PATCH 06/13] mm/mmap: Export 'vma_link' and 'find_vma_links' to mm subsystem Date: Mon, 13 Mar 2017 15:14:08 -0700 Message-Id: <20170313221415.9375-7-till.smejkal@gmail.com> X-Mailer: git-send-email 2.12.0 In-Reply-To: <20170313221415.9375-1-till.smejkal@gmail.com> References: <20170313221415.9375-1-till.smejkal@gmail.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170313_151504_781296_A1108623 X-CRM114-Status: GOOD ( 13.51 ) X-Spam-Score: -2.0 (--) X-Spam-Report: SpamAssassin version 3.4.1 on bombadil.infradead.org summary: Content analysis details: (-2.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [2a00:1450:400c:c0c:0:0:0:242 listed in] [list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (till.smejkal[at]googlemail.com) -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid X-Mailman-Approved-At: Mon, 13 Mar 2017 19:01:29 -0700 X-BeenThere: linux-snps-arc@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Linux on Synopsys ARC Processors List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-mips@linux-mips.org, alsa-devel@alsa-project.org, linux-ia64@vger.kernel.org, linux-aio@kvack.org, linux-mm@kvack.org, linux-mtd@lists.infradead.org, sparclinux@vger.kernel.org, linux-arch@vger.kernel.org, linux-s390@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-sh@vger.kernel.org, linux-snps-arc@lists.infradead.org, linux-media@vger.kernel.org, linux-xtensa@linux-xtensa.org, adi-buildroot-devel@lists.sourceforge.net, linux-metag@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-parisc@vger.kernel.org, linux-api@vger.kernel.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, linux-alpha@vger.kernel.org, linux-fsdevel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org MIME-Version: 1.0 Sender: "linux-snps-arc" Errors-To: linux-snps-arc-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org Make the functions 'vma_link' and 'find_vma_links' accessible to other source files in the mm/ source directory of the kernel so that other files in that directory can also perform low level changes to mm_struct data structures. Signed-off-by: Till Smejkal --- mm/internal.h | 11 +++++++++++ mm/mmap.c | 12 ++++++------ 2 files changed, 17 insertions(+), 6 deletions(-) diff --git a/mm/internal.h b/mm/internal.h index 7aa2ea0a8623..e22cb031b45b 100644 --- a/mm/internal.h +++ b/mm/internal.h @@ -76,6 +76,17 @@ static inline void set_page_refcounted(struct page *page) extern unsigned long highest_memmap_pfn; /* + * in mm/mmap.c + */ +extern void vma_link(struct mm_struct *mm, struct vm_area_struct *vma, + struct vm_area_struct *prev, struct rb_node **rb_link, + struct rb_node *rb_parent); +extern int find_vma_links(struct mm_struct *mm, unsigned long addr, + unsigned long end, struct vm_area_struct **pprev, + struct rb_node ***rb_link, + struct rb_node **rb_parent); + +/* * in mm/vmscan.c: */ extern int isolate_lru_page(struct page *page); diff --git a/mm/mmap.c b/mm/mmap.c index 3f60c8ebd6b6..d35c6b51cadf 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -466,9 +466,9 @@ anon_vma_interval_tree_post_update_vma(struct vm_area_struct *vma) anon_vma_interval_tree_insert(avc, &avc->anon_vma->rb_root); } -static int find_vma_links(struct mm_struct *mm, unsigned long addr, - unsigned long end, struct vm_area_struct **pprev, - struct rb_node ***rb_link, struct rb_node **rb_parent) +int find_vma_links(struct mm_struct *mm, unsigned long addr, + unsigned long end, struct vm_area_struct **pprev, + struct rb_node ***rb_link, struct rb_node **rb_parent) { struct rb_node **__rb_link, *__rb_parent, *rb_prev; @@ -580,9 +580,9 @@ __vma_link(struct mm_struct *mm, struct vm_area_struct *vma, __vma_link_rb(mm, vma, rb_link, rb_parent); } -static void vma_link(struct mm_struct *mm, struct vm_area_struct *vma, - struct vm_area_struct *prev, struct rb_node **rb_link, - struct rb_node *rb_parent) +void vma_link(struct mm_struct *mm, struct vm_area_struct *vma, + struct vm_area_struct *prev, struct rb_node **rb_link, + struct rb_node *rb_parent) { struct address_space *mapping = NULL;