From patchwork Sat Feb 5 17:46:29 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Aneesh Kumar K.V" X-Patchwork-Id: 534031 X-Patchwork-Delegate: ericvh@gmail.com Received: from lists.sourceforge.net (lists.sourceforge.net [216.34.181.88]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id p15HlZ0S021284 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Sat, 5 Feb 2011 17:47:56 GMT Received: from localhost ([127.0.0.1] helo=sfs-ml-1.v29.ch3.sourceforge.com) by sfs-ml-1.v29.ch3.sourceforge.com with esmtp (Exim 4.74) (envelope-from ) id 1PlmDy-0004Sm-Lm; Sat, 05 Feb 2011 17:47:06 +0000 Received: from sog-mx-4.v43.ch3.sourceforge.com ([172.29.43.194] helo=mx.sourceforge.net) by sfs-ml-1.v29.ch3.sourceforge.com with esmtp (Exim 4.74) (envelope-from ) id 1PlmDx-0004Sh-QC for v9fs-developer@lists.sourceforge.net; Sat, 05 Feb 2011 17:47:05 +0000 X-ACL-Warn: Received: from e28smtp03.in.ibm.com ([122.248.162.3]) by sog-mx-4.v43.ch3.sourceforge.com with esmtps (TLSv1:AES256-SHA:256) (Exim 4.74) id 1PlmDv-0008L0-4i for v9fs-developer@lists.sourceforge.net; Sat, 05 Feb 2011 17:47:05 +0000 Received: from d28relay01.in.ibm.com (d28relay01.in.ibm.com [9.184.220.58]) by e28smtp03.in.ibm.com (8.14.4/8.13.1) with ESMTP id p15HksJQ010867 for ; Sat, 5 Feb 2011 23:16:54 +0530 Received: from d28av03.in.ibm.com (d28av03.in.ibm.com [9.184.220.65]) by d28relay01.in.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id p15Hksov3620894 for ; Sat, 5 Feb 2011 23:16:54 +0530 Received: from d28av03.in.ibm.com (loopback [127.0.0.1]) by d28av03.in.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id p15HkrCr014520 for ; Sun, 6 Feb 2011 04:46:54 +1100 Received: from skywalker.ibm.com ([9.124.88.193]) by d28av03.in.ibm.com (8.14.4/8.13.1/NCO v10.0 AVin) with ESMTP id p15HknSS014456; Sun, 6 Feb 2011 04:46:52 +1100 From: "Aneesh Kumar K.V" To: v9fs-developer@lists.sourceforge.net Date: Sat, 5 Feb 2011 23:16:29 +0530 Message-Id: <1296928005-9529-2-git-send-email-aneesh.kumar@linux.vnet.ibm.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1296928005-9529-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> References: <1296928005-9529-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> X-Spam-Score: -0.0 (/) X-Spam-Report: Spam Filtering performed by mx.sourceforge.net. See http://spamassassin.org/tag/ for more details. -0.0 T_RP_MATCHES_RCVD Envelope sender domain matches handover relay domain X-Headers-End: 1PlmDv-0008L0-4i Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [V9fs-developer] [RFC PATCH -V2 01/17] fs/9p: set the cached file_operations struct during inode init X-BeenThere: v9fs-developer@lists.sourceforge.net X-Mailman-Version: 2.1.9 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: v9fs-developer-bounces@lists.sourceforge.net X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.6 (demeter1.kernel.org [140.211.167.41]); Sat, 05 Feb 2011 17:47:56 +0000 (UTC) diff --git a/fs/9p/v9fs_vfs.h b/fs/9p/v9fs_vfs.h index b789f8e..e4d5540 100644 --- a/fs/9p/v9fs_vfs.h +++ b/fs/9p/v9fs_vfs.h @@ -45,6 +45,8 @@ extern const struct file_operations v9fs_dir_operations; extern const struct file_operations v9fs_dir_operations_dotl; extern const struct dentry_operations v9fs_dentry_operations; extern const struct dentry_operations v9fs_cached_dentry_operations; +extern const struct file_operations v9fs_cached_file_operations; +extern const struct file_operations v9fs_cached_file_operations_dotl; #ifdef CONFIG_9P_FSCACHE struct inode *v9fs_alloc_inode(struct super_block *sb); diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c index 240c306..6a67100 100644 --- a/fs/9p/vfs_file.c +++ b/fs/9p/vfs_file.c @@ -44,9 +44,6 @@ #include "fid.h" #include "cache.h" -static const struct file_operations v9fs_cached_file_operations; -static const struct file_operations v9fs_cached_file_operations_dotl; - /** * v9fs_file_open - open a file (or directory) * @inode: inode to be opened @@ -89,19 +86,12 @@ int v9fs_file_open(struct inode *inode, struct file *file) } file->private_data = fid; +#ifdef CONFIG_9P_FSCACHE if ((fid->qid.version) && (v9ses->cache)) { P9_DPRINTK(P9_DEBUG_VFS, "cached"); - /* enable cached file options */ - if(file->f_op == &v9fs_file_operations) - file->f_op = &v9fs_cached_file_operations; - else if (file->f_op == &v9fs_file_operations_dotl) - file->f_op = &v9fs_cached_file_operations_dotl; - -#ifdef CONFIG_9P_FSCACHE v9fs_cache_inode_set_cookie(inode, file); -#endif } - +#endif return 0; } @@ -505,7 +495,7 @@ int v9fs_file_fsync_dotl(struct file *filp, int datasync) return retval; } -static const struct file_operations v9fs_cached_file_operations = { +const struct file_operations v9fs_cached_file_operations = { .llseek = generic_file_llseek, .read = do_sync_read, .aio_read = generic_file_aio_read, @@ -517,7 +507,7 @@ static const struct file_operations v9fs_cached_file_operations = { .fsync = v9fs_file_fsync, }; -static const struct file_operations v9fs_cached_file_operations_dotl = { +const struct file_operations v9fs_cached_file_operations_dotl = { .llseek = generic_file_llseek, .read = do_sync_read, .aio_read = generic_file_aio_read, diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c index b76a40b..45e7ea4 100644 --- a/fs/9p/vfs_inode.c +++ b/fs/9p/vfs_inode.c @@ -292,10 +292,16 @@ struct inode *v9fs_get_inode(struct super_block *sb, int mode) case S_IFREG: if (v9fs_proto_dotl(v9ses)) { inode->i_op = &v9fs_file_inode_operations_dotl; - inode->i_fop = &v9fs_file_operations_dotl; + if (v9ses->cache) + inode->i_fop = &v9fs_cached_file_operations_dotl; + else + inode->i_fop = &v9fs_file_operations_dotl; } else { inode->i_op = &v9fs_file_inode_operations; - inode->i_fop = &v9fs_file_operations; + if (v9ses->cache) + inode->i_fop = &v9fs_cached_file_operations; + else + inode->i_fop = &v9fs_file_operations; } break;