From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Venkateswararao Jujjuri (JV)" Subject: Re: [V9fs-developer] [PATCH 1/3] fs/9p: Update TLCREATE to allow create without open Date: Wed, 06 Oct 2010 07:18:58 -0700 Message-ID: <4CAC8552.6090304@linux.vnet.ibm.com> References: <1286298090-2422-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Eric Van Hensbergen , linux-fsdevel@vger.kernel.org, v9fs-developer@lists.sourceforge.net, linux-kernel@vger.kernel.org To: "Aneesh Kumar K. V" Return-path: In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org On 10/6/2010 4:03 AM, Aneesh Kumar K. V wrote: > On Wed, 06 Oct 2010 11:48:15 +0530, "Aneesh Kumar K. V" wrote: >> On Tue, 5 Oct 2010 13:15:42 -0400, Eric Van Hensbergen wrote: >>> Ouch. Protocol change. >>> >>> Also - not sure I understand what's going on here. Why does mknod go >>> through TLCREATE, shouldn't we have our >>> own protocol messages for mknod?// >> >> This is needed for the below mknod usage >> >> mknod("k2", S_IFREG) ; >> >> > > May be a better fix is to make sure we use TLMKNOD instead of TLCREATE > in case we get a create without LOOKUP_OPEN flags set. So how about Yep. This sounds much better. :) - JV > > diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c > index 2f904a8..e89754f 100644 > --- a/fs/9p/vfs_inode.c > +++ b/fs/9p/vfs_inode.c > @@ -55,6 +55,10 @@ static const struct inode_operations v9fs_file_inode_operations_dotl; > static const struct inode_operations v9fs_symlink_inode_operations; > static const struct inode_operations v9fs_symlink_inode_operations_dotl; > > +static int > +v9fs_vfs_mknod_dotl(struct inode *dir, struct dentry *dentry, int omode, > + dev_t rdev); > + > /** > * unixmode2p9mode - convert unix mode bits to plan 9 > * @v9ses: v9fs session information > @@ -681,8 +685,14 @@ v9fs_vfs_create_dotl(struct inode *dir, struct dentry *dentry, int omode, > v9ses = v9fs_inode2v9ses(dir); > if (nd&& nd->flags& LOOKUP_OPEN) > flags = nd->intent.open.flags - 1; > - else > - flags = O_RDWR; > + else { > + /* > + * create call without LOOKUP_OPEN is due > + * to mknod of regular files. So use mknod > + * operation. > + */ > + return v9fs_vfs_mknod_dotl(dir, dentry, omode, 0); > + } > > name = (char *) dentry->d_name.name; > P9_DPRINTK(P9_DEBUG_VFS, "v9fs_vfs_create_dotl: name:%s flags:0x%x " > > ------------------------------------------------------------------------------ > Beautiful is writing same markup. Internet Explorer 9 supports > standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2& L3. > Spend less time writing and rewriting code and more time creating great > experiences on the web. Be a part of the beta today. > http://p.sf.net/sfu/beautyoftheweb > _______________________________________________ > V9fs-developer mailing list > V9fs-developer@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/v9fs-developer