From mboxrd@z Thu Jan 1 00:00:00 1970 From: zhuyj Subject: Re: [PATCH 1/1] overlayfs: restrict structs visible in current code module Date: Mon, 4 Jan 2016 18:40:23 +0800 Message-ID: <568A4C17.80703@gmail.com> References: <1451900570-28233-1-git-send-email-zyjzyj2000@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mail-pf0-f181.google.com ([209.85.192.181]:34133 "EHLO mail-pf0-f181.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751500AbcADKka (ORCPT ); Mon, 4 Jan 2016 05:40:30 -0500 Received: by mail-pf0-f181.google.com with SMTP id e65so147620434pfe.1 for ; Mon, 04 Jan 2016 02:40:29 -0800 (PST) In-Reply-To: <1451900570-28233-1-git-send-email-zyjzyj2000@gmail.com> Sender: linux-unionfs-owner@vger.kernel.org List-Id: linux-unionfs@vger.kernel.org To: miklos@szeredi.hu, linux-unionfs@vger.kernel.org Sorry. Please ignore this patch. Zhu Yanjun On 01/04/2016 05:42 PM, zyjzyj2000@gmail.com wrote: > From: Zhu Yanjun > > The structs ovl_cache_entry, ovl_dir_cache and ovl_dir_file > are only used in the file fs/overlayfs/readdir.c. As such, > the static keyword is inserted to define that object to be > only visible to the current code module during compilation. > > Signed-off-by: Zhu Yanjun > --- > fs/overlayfs/readdir.c | 8 ++++---- > 1 file changed, 4 insertions(+), 4 deletions(-) > > diff --git a/fs/overlayfs/readdir.c b/fs/overlayfs/readdir.c > index 70e9af5..362bc1c 100644 > --- a/fs/overlayfs/readdir.c > +++ b/fs/overlayfs/readdir.c > @@ -17,7 +17,7 @@ > #include > #include "overlayfs.h" > > -struct ovl_cache_entry { > +static struct ovl_cache_entry { > unsigned int len; > unsigned int type; > u64 ino; > @@ -28,13 +28,13 @@ struct ovl_cache_entry { > char name[]; > }; > > -struct ovl_dir_cache { > +static struct ovl_dir_cache { > long refcount; > u64 version; > struct list_head entries; > }; > > -struct ovl_readdir_data { > +static struct ovl_readdir_data { > struct dir_context ctx; > bool is_merge; > struct rb_root root; > @@ -45,7 +45,7 @@ struct ovl_readdir_data { > int err; > }; > > -struct ovl_dir_file { > +static struct ovl_dir_file { > bool is_real; > bool is_upper; > struct ovl_dir_cache *cache;