From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AG47ELvxYbdZ3hKa8x+YhqbzHD9Lfb+o3zlCxrOsM80gd4pzbjUpq/A0jD3PZi3QKGdGEQ+30O9Y ARC-Seal: i=1; a=rsa-sha256; t=1520973425; cv=none; d=google.com; s=arc-20160816; b=x6gDw0w/00Laa5igxcOVdmw9uAdtzPryGFAsO9hq12qMpgSQJ3XYCTUqHpIwJkoAAh arig32NRa6BkXcSEuYOmQ9z3q58ePX/IxEG5VtRWqhz91qNkpr7bgE7qsUyMX5izA9cv gpNRhHwYy9z8O0MU11MBHLfyIB8go7t8l/Yf/HTr/3cxa9tcdSdoS/qNBcx2s4h6YKJn Xt929deufubernjzuKOmhotKW5Uxr7/on9FcYBZuXTqeuz2Rn/9xo3Nj5WATraGdp9lj ffnOQxs6KwMaeHvQHMU3K+mQZnCqZDejDY+KNxbknO0zuIXjw+mzYu9tncJszqvEQOKF 6NcQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=user-agent:in-reply-to:content-transfer-encoding :content-disposition:mime-version:references:message-id:subject:cc :to:from:date:arc-authentication-results; bh=T2xh95kiqzQb9maceUwX4mSbBLBoEnn7SIOiBquWiMA=; b=bwL/91zhUJzav089cyEXAFl5U5uAKn4qfz3dBJd6Oh4TEB/ChxlA/ERDkEEZJuFW42 kRKqwDm0GKIsP7Chx20WrsuaXXCE5j1AjuEBVzcv6PfYsAla9VTp/lEi4OVR6+ELICWE QdmCNK3jHXg3Hgqp1uBcFQXdnOJByqExyzWWDJJ9MXBJO7HUcxTyt5AABjazEHXvyszb 7tTzV8Xao6Km8aUrYxlLDLbs4XFRHQKWPryg/EhRo0O4oSDloSu9c345R/Sk+1nCkqHm Eosv1CaH4kBj/TVTaKO5xi7hmGzlkiV6j2ZFDWqkIYlyNeeKqA9IcujHTk6IbDUq7Cqs qi7A== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of jglisse@redhat.com designates 66.187.233.73 as permitted sender) smtp.mailfrom=jglisse@redhat.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=redhat.com Authentication-Results: mx.google.com; spf=pass (google.com: domain of jglisse@redhat.com designates 66.187.233.73 as permitted sender) smtp.mailfrom=jglisse@redhat.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=redhat.com Date: Tue, 13 Mar 2018 16:36:57 -0400 From: Jerome Glisse To: Ravi Bangoria Cc: mhiramat@kernel.org, oleg@redhat.com, peterz@infradead.org, srikar@linux.vnet.ibm.com, acme@kernel.org, ananth@linux.vnet.ibm.com, akpm@linux-foundation.org, alexander.shishkin@linux.intel.com, alexis.berlemont@gmail.com, corbet@lwn.net, dan.j.williams@intel.com, gregkh@linuxfoundation.org, huawei.libin@huawei.com, hughd@google.com, jack@suse.cz, jolsa@redhat.com, kan.liang@intel.com, kirill.shutemov@linux.intel.com, kjlx@templeofstupid.com, kstewart@linuxfoundation.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, mhocko@suse.com, milian.wolff@kdab.com, mingo@redhat.com, namhyung@kernel.org, naveen.n.rao@linux.vnet.ibm.com, pc@us.ibm.com, pombredanne@nexb.com, rostedt@goodmis.org, tglx@linutronix.de, tmricht@linux.vnet.ibm.com, willy@infradead.org, yao.jin@linux.intel.com, fengguang.wu@intel.com Subject: Re: [PATCH 1/8] Uprobe: Export vaddr <-> offset conversion functions Message-ID: <20180313203657.GG3828@redhat.com> References: <20180313125603.19819-1-ravi.bangoria@linux.vnet.ibm.com> <20180313125603.19819-2-ravi.bangoria@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20180313125603.19819-2-ravi.bangoria@linux.vnet.ibm.com> User-Agent: Mutt/1.9.2 (2017-12-15) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: =?utf-8?q?1594827116225046806?= X-GMAIL-MSGID: =?utf-8?q?1594856230713962077?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: On Tue, Mar 13, 2018 at 06:25:56PM +0530, Ravi Bangoria wrote: > No functionality changes. > > Signed-off-by: Ravi Bangoria Reviewed-by: Jérôme Glisse > --- > include/linux/mm.h | 12 ++++++++++++ > kernel/events/uprobes.c | 10 ---------- > 2 files changed, 12 insertions(+), 10 deletions(-) > > diff --git a/include/linux/mm.h b/include/linux/mm.h > index ad06d42..95909f2 100644 > --- a/include/linux/mm.h > +++ b/include/linux/mm.h > @@ -2274,6 +2274,18 @@ struct vm_unmapped_area_info { > return unmapped_area(info); > } > > +static inline unsigned long > +offset_to_vaddr(struct vm_area_struct *vma, loff_t offset) > +{ > + return vma->vm_start + offset - ((loff_t)vma->vm_pgoff << PAGE_SHIFT); > +} > + > +static inline loff_t > +vaddr_to_offset(struct vm_area_struct *vma, unsigned long vaddr) > +{ > + return ((loff_t)vma->vm_pgoff << PAGE_SHIFT) + (vaddr - vma->vm_start); > +} > + > /* truncate.c */ > extern void truncate_inode_pages(struct address_space *, loff_t); > extern void truncate_inode_pages_range(struct address_space *, > diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c > index ce6848e..bd6f230 100644 > --- a/kernel/events/uprobes.c > +++ b/kernel/events/uprobes.c > @@ -130,16 +130,6 @@ static bool valid_vma(struct vm_area_struct *vma, bool is_register) > return vma->vm_file && (vma->vm_flags & flags) == VM_MAYEXEC; > } > > -static unsigned long offset_to_vaddr(struct vm_area_struct *vma, loff_t offset) > -{ > - return vma->vm_start + offset - ((loff_t)vma->vm_pgoff << PAGE_SHIFT); > -} > - > -static loff_t vaddr_to_offset(struct vm_area_struct *vma, unsigned long vaddr) > -{ > - return ((loff_t)vma->vm_pgoff << PAGE_SHIFT) + (vaddr - vma->vm_start); > -} > - > /** > * __replace_page - replace page in vma by new page. > * based on replace_page in mm/ksm.c > -- > 1.8.3.1 >