Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs: (22 commits)
  9p: fix sparse warnings in new xattr code
  fs/9p: remove sparse warning in vfs_inode
  fs/9p: destroy fid on failed remove
  fs/9p: Prevent parallel rename when doing fid_lookup
  fs/9p: Add support user. xattr
  net/9p: Implement TXATTRCREATE 9p call
  net/9p: Implement attrwalk 9p call
  9p: Implement LOPEN
  fs/9p: This patch implements TLCREATE for 9p2000.L protocol.
  9p: Implement TMKDIR
  9p: Implement TMKNOD
  9p: Define and implement TSYMLINK for 9P2000.L
  9p: Define and implement TLINK for 9P2000.L
  9p: Define and implement TLINK for 9P2000.L
  9p: Implement client side of setattr for 9P2000.L protocol.
  9p: getattr client implementation for 9P2000.L protocol.
  fs/9p: Pass the correct user credentials during attach
  net/9p: Handle the server returned error properly
  9p: readdir implementation for 9p2000.L
  9p: Make use of iounit for read/write
  ...

18 files changed, 1845 insertions, 123 deletions

diff --git a/fs/9p/Makefile b/fs/9p/Makefile
index 1a940ec7af61..91fba025fcbe 100644
--- a/fs/9p/Makefile
+++ b/fs/9p/Makefile
@@ -8,6 +8,8 @@ obj-$(CONFIG_9P_FS) := 9p.o
         vfs_dir.o \
         vfs_dentry.o \
         v9fs.o \
-        fid.o
+        fid.o  \
+        xattr.o \
+        xattr_user.o
 
 9p-$(CONFIG_9P_FSCACHE) += cache.o
diff --git a/fs/9p/fid.c b/fs/9p/fid.c
index 7317b39b2815..358563689064 100644
--- a/fs/9p/fid.c
+++ b/fs/9p/fid.c
@@ -97,6 +97,34 @@ static struct p9_fid *v9fs_fid_find(struct dentry *dentry, u32 uid, int any)
         return ret;
 }
 
+/*
+ * We need to hold v9ses->rename_sem as long as we hold references
+ * to returned path array. Array element contain pointers to
+ * dentry names.
+ */
+static int build_path_from_dentry(struct v9fs_session_info *v9ses,
+                                  struct dentry *dentry, char ***names)
+{
+        int n = 0, i;
+        char **wnames;
+        struct dentry *ds;
+
+        for (ds = dentry; !IS_ROOT(ds); ds = ds->d_parent)
+                n++;
+
+        wnames = kmalloc(sizeof(char *) * n, GFP_KERNEL);
+        if (!wnames)
+                goto err_out;
+
+        for (ds = dentry, i = (n-1); i >= 0; i--, ds = ds->d_parent)
+                wnames[i] = (char  *)ds->d_name.name;
+
+        *names = wnames;
+        return n;
+err_out:
+        return -ENOMEM;
+}
+
 /**
  * v9fs_fid_lookup - lookup for a fid, try to walk if not found
  * @dentry: dentry to look for fid in
@@ -112,7 +140,7 @@ struct p9_fid *v9fs_fid_lookup(struct dentry *dentry)
         int i, n, l, clone, any, access;
         u32 uid;
         struct p9_fid *fid, *old_fid = NULL;
-        struct dentry *d, *ds;
+        struct dentry *ds;
         struct v9fs_session_info *v9ses;
         char **wnames, *uname;
 
@@ -139,49 +167,62 @@ struct p9_fid *v9fs_fid_lookup(struct dentry *dentry)
         fid = v9fs_fid_find(dentry, uid, any);
         if (fid)
                 return fid;
-
+        /*
+         * we don't have a matching fid. To do a TWALK we need
+         * parent fid. We need to prevent rename when we want to
+         * look at the parent.
+         */
+        down_read(&v9ses->rename_sem);
         ds = dentry->d_parent;
         fid = v9fs_fid_find(ds, uid, any);
-        if (!fid) { /* walk from the root */
-                n = 0;
-                for (ds = dentry; !IS_ROOT(ds); ds = ds->d_parent)
-                        n++;
+        if (fid) {
+                /* Found the parent fid do a lookup with that */
+                fid = p9_client_walk(fid, 1, (char **)&dentry->d_name.name, 1);
+                goto fid_out;
+        }
+        up_read(&v9ses->rename_sem);
 
-                fid = v9fs_fid_find(ds, uid, any);
-                if (!fid) { /* the user is not attached to the fs yet */
-                        if (access == V9FS_ACCESS_SINGLE)
-                                return ERR_PTR(-EPERM);
+        /* start from the root and try to do a lookup */
+        fid = v9fs_fid_find(dentry->d_sb->s_root, uid, any);
+        if (!fid) {
+                /* the user is not attached to the fs yet */
+                if (access == V9FS_ACCESS_SINGLE)
+                        return ERR_PTR(-EPERM);
 
-                        if (v9fs_proto_dotu(v9ses))
+                if (v9fs_proto_dotu(v9ses) || v9fs_proto_dotl(v9ses))
                                 uname = NULL;
-                        else
-                                uname = v9ses->uname;
+                else
+                        uname = v9ses->uname;
 
-                        fid = p9_client_attach(v9ses->clnt, NULL, uname, uid,
-                                v9ses->aname);
-
-                        if (IS_ERR(fid))
-                                return fid;
-
-                        v9fs_fid_add(ds, fid);
-                }
-        } else /* walk from the parent */
-                n = 1;
+                fid = p9_client_attach(v9ses->clnt, NULL, uname, uid,
+                                       v9ses->aname);
+                if (IS_ERR(fid))
+                        return fid;
 
-        if (ds == dentry)
+                v9fs_fid_add(dentry->d_sb->s_root, fid);
+        }
+        /* If we are root ourself just return that */
+        if (dentry->d_sb->s_root == dentry)
                 return fid;
-
-        wnames = kmalloc(sizeof(char *) * n, GFP_KERNEL);
-        if (!wnames)
-                return ERR_PTR(-ENOMEM);
-
-        for (d = dentry, i = (n-1); i >= 0; i--, d = d->d_parent)
-                wnames[i] = (char *) d->d_name.name;
-
+        /*
+         * Do a multipath walk with attached root.
+         * When walking parent we need to make sure we
+         * don't have a parallel rename happening
+         */
+        down_read(&v9ses->rename_sem);
+        n  = build_path_from_dentry(v9ses, dentry, &wnames);
+        if (n < 0) {
+                fid = ERR_PTR(n);
+                goto err_out;
+        }
         clone = 1;
         i = 0;
         while (i < n) {
                 l = min(n - i, P9_MAXWELEM);
+                /*
+                 * We need to hold rename lock when doing a multipath
+                 * walk to ensure none of the patch component change
+                 */
                 fid = p9_client_walk(fid, l, &wnames[i], clone);
                 if (IS_ERR(fid)) {
                         if (old_fid) {
@@ -193,15 +234,17 @@ struct p9_fid *v9fs_fid_lookup(struct dentry *dentry)
                                 p9_client_clunk(old_fid);
                         }
                         kfree(wnames);
-                        return fid;
+                        goto err_out;
                 }
                 old_fid = fid;
                 i += l;
                 clone = 0;
         }
-
         kfree(wnames);
+fid_out:
         v9fs_fid_add(dentry, fid);
+err_out:
+        up_read(&v9ses->rename_sem);
         return fid;
 }
 
diff --git a/fs/9p/v9fs.c b/fs/9p/v9fs.c
index f8b86e92cd66..38dc0e067599 100644
--- a/fs/9p/v9fs.c
+++ b/fs/9p/v9fs.c
@@ -237,6 +237,7 @@ struct p9_fid *v9fs_session_init(struct v9fs_session_info *v9ses,
                 __putname(v9ses->uname);
                 return ERR_PTR(-ENOMEM);
         }
+        init_rwsem(&v9ses->rename_sem);
 
         rc = bdi_setup_and_register(&v9ses->bdi, "9p", BDI_CAP_MAP_COPY);
         if (rc) {
@@ -278,7 +279,7 @@ struct p9_fid *v9fs_session_init(struct v9fs_session_info *v9ses,
         v9ses->maxdata = v9ses->clnt->msize - P9_IOHDRSZ;
 
         /* for legacy mode, fall back to V9FS_ACCESS_ANY */
-        if (!v9fs_proto_dotu(v9ses) &&
+        if (!(v9fs_proto_dotu(v9ses) || v9fs_proto_dotl(v9ses)) &&
                 ((v9ses->flags&V9FS_ACCESS_MASK) == V9FS_ACCESS_USER)) {
 
                 v9ses->flags &= ~V9FS_ACCESS_MASK;
diff --git a/fs/9p/v9fs.h b/fs/9p/v9fs.h
index bec4d0bcb458..4c963c9fc41f 100644
--- a/fs/9p/v9fs.h
+++ b/fs/9p/v9fs.h
@@ -104,6 +104,7 @@ struct v9fs_session_info {
         struct p9_client *clnt; /* 9p client */
         struct list_head slist; /* list of sessions registered with v9fs */
         struct backing_dev_info bdi;
+        struct rw_semaphore rename_sem;
 };
 
 struct p9_fid *v9fs_session_init(struct v9fs_session_info *, const char *,
diff --git a/fs/9p/v9fs_vfs.h b/fs/9p/v9fs_vfs.h
index 32ef4009d030..f47c6bbb01b3 100644
--- a/fs/9p/v9fs_vfs.h
+++ b/fs/9p/v9fs_vfs.h
@@ -55,6 +55,7 @@ struct inode *v9fs_get_inode(struct super_block *sb, int mode);
 void v9fs_clear_inode(struct inode *inode);
 ino_t v9fs_qid2ino(struct p9_qid *qid);
 void v9fs_stat2inode(struct p9_wstat *, struct inode *, struct super_block *);
+void v9fs_stat2inode_dotl(struct p9_stat_dotl *, struct inode *);
 int v9fs_dir_release(struct inode *inode, struct file *filp);
 int v9fs_file_open(struct inode *inode, struct file *file);
 void v9fs_inode2stat(struct inode *inode, struct p9_wstat *stat);
diff --git a/fs/9p/vfs_dir.c b/fs/9p/vfs_dir.c
index 36d961f342af..16c8a2a98c1b 100644
--- a/fs/9p/vfs_dir.c
+++ b/fs/9p/vfs_dir.c
@@ -87,29 +87,19 @@ static void p9stat_init(struct p9_wstat *stbuf)
 }
 
 /**
- * v9fs_dir_readdir - read a directory
+ * v9fs_alloc_rdir_buf - Allocate buffer used for read and readdir
  * @filp: opened file structure
- * @dirent: directory structure ???
- * @filldir: function to populate directory structure ???
+ * @buflen: Length in bytes of buffer to allocate
  *
  */
 
-static int v9fs_dir_readdir(struct file *filp, void *dirent, filldir_t filldir)
+static int v9fs_alloc_rdir_buf(struct file *filp, int buflen)
 {
-        int over;
-        struct p9_wstat st;
-        int err = 0;
-        struct p9_fid *fid;
-        int buflen;
-        int reclen = 0;
         struct p9_rdir *rdir;
+        struct p9_fid *fid;
+        int err = 0;
 
-        P9_DPRINTK(P9_DEBUG_VFS, "name %s\n", filp->f_path.dentry->d_name.name);
         fid = filp->private_data;
-
-        buflen = fid->clnt->msize - P9_IOHDRSZ;
-
-        /* allocate rdir on demand */
         if (!fid->rdir) {
                 rdir = kmalloc(sizeof(struct p9_rdir) + buflen, GFP_KERNEL);
 
@@ -128,6 +118,36 @@ static int v9fs_dir_readdir(struct file *filp, void *dirent, filldir_t filldir)
                 spin_unlock(&filp->f_dentry->d_lock);
                 kfree(rdir);
         }
+exit:
+        return err;
+}
+
+/**
+ * v9fs_dir_readdir - read a directory
+ * @filp: opened file structure
+ * @dirent: directory structure ???
+ * @filldir: function to populate directory structure ???
+ *
+ */
+
+static int v9fs_dir_readdir(struct file *filp, void *dirent, filldir_t filldir)
+{
+        int over;
+        struct p9_wstat st;
+        int err = 0;
+        struct p9_fid *fid;
+        int buflen;
+        int reclen = 0;
+        struct p9_rdir *rdir;
+
+        P9_DPRINTK(P9_DEBUG_VFS, "name %s\n", filp->f_path.dentry->d_name.name);
+        fid = filp->private_data;
+
+        buflen = fid->clnt->msize - P9_IOHDRSZ;
+
+        err = v9fs_alloc_rdir_buf(filp, buflen);
+        if (err)
+                goto exit;
         rdir = (struct p9_rdir *) fid->rdir;
 
         err = mutex_lock_interruptible(&rdir->mutex);
@@ -176,6 +196,88 @@ exit:
         return err;
 }
 
+/**
+ * v9fs_dir_readdir_dotl - read a directory
+ * @filp: opened file structure
+ * @dirent: buffer to fill dirent structures
+ * @filldir: function to populate dirent structures
+ *
+ */
+static int v9fs_dir_readdir_dotl(struct file *filp, void *dirent,
+                                                filldir_t filldir)
+{
+        int over;
+        int err = 0;
+        struct p9_fid *fid;
+        int buflen;
+        struct p9_rdir *rdir;
+        struct p9_dirent curdirent;
+        u64 oldoffset = 0;
+
+        P9_DPRINTK(P9_DEBUG_VFS, "name %s\n", filp->f_path.dentry->d_name.name);
+        fid = filp->private_data;
+
+        buflen = fid->clnt->msize - P9_READDIRHDRSZ;
+
+        err = v9fs_alloc_rdir_buf(filp, buflen);
+        if (err)
+                goto exit;
+        rdir = (struct p9_rdir *) fid->rdir;
+
+        err = mutex_lock_interruptible(&rdir->mutex);
+        if (err)
+                return err;
+
+        while (err == 0) {
+                if (rdir->tail == rdir->head) {
+                        err = p9_client_readdir(fid, rdir->buf, buflen,
+                                                                filp->f_pos);
+                        if (err <= 0)
+                                goto unlock_and_exit;
+
+                        rdir->head = 0;
+                        rdir->tail = err;
+                }
+
+                while (rdir->head < rdir->tail) {
+
+                        err = p9dirent_read(rdir->buf + rdir->head,
+                                                buflen - rdir->head, &curdirent,
+                                                fid->clnt->proto_version);
+                        if (err < 0) {
+                                P9_DPRINTK(P9_DEBUG_VFS, "returned %d\n", err);
+                                err = -EIO;
+                                goto unlock_and_exit;
+                        }
+
+                        /* d_off in dirent structure tracks the offset into
+                         * the next dirent in the dir. However, filldir()
+                         * expects offset into the current dirent. Hence
+                         * while calling filldir send the offset from the
+                         * previous dirent structure.
+                         */
+                        over = filldir(dirent, curdirent.d_name,
+                                        strlen(curdirent.d_name),
+                                        oldoffset, v9fs_qid2ino(&curdirent.qid),
+                                        curdirent.d_type);
+                        oldoffset = curdirent.d_off;
+
+                        if (over) {
+                                err = 0;
+                                goto unlock_and_exit;
+                        }
+
+                        filp->f_pos = curdirent.d_off;
+                        rdir->head += err;
+                }
+        }
+
+unlock_and_exit:
+        mutex_unlock(&rdir->mutex);
+exit:
+        return err;
+}
+
 
 /**
  * v9fs_dir_release - close a directory
@@ -207,7 +309,7 @@ const struct file_operations v9fs_dir_operations = {
 const struct file_operations v9fs_dir_operations_dotl = {
         .read = generic_read_dir,
         .llseek = generic_file_llseek,
-        .readdir = v9fs_dir_readdir,
+        .readdir = v9fs_dir_readdir_dotl,
         .open = v9fs_file_open,
         .release = v9fs_dir_release,
 };
diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c
index 2bedc6c94fc2..e97c92bd6f16 100644
--- a/fs/9p/vfs_file.c
+++ b/fs/9p/vfs_file.c
@@ -59,9 +59,13 @@ int v9fs_file_open(struct inode *inode, struct file *file)
         struct p9_fid *fid;
         int omode;
 
-        P9_DPRINTK(P9_DEBUG_VFS, "inode: %p file: %p \n", inode, file);
+        P9_DPRINTK(P9_DEBUG_VFS, "inode: %p file: %p\n", inode, file);
         v9ses = v9fs_inode2v9ses(inode);
-        omode = v9fs_uflags2omode(file->f_flags, v9fs_proto_dotu(v9ses));
+        if (v9fs_proto_dotl(v9ses))
+                omode = file->f_flags;
+        else
+                omode = v9fs_uflags2omode(file->f_flags,
+                                        v9fs_proto_dotu(v9ses));
         fid = file->private_data;
         if (!fid) {
                 fid = v9fs_fid_clone(file->f_path.dentry);
@@ -73,11 +77,12 @@ int v9fs_file_open(struct inode *inode, struct file *file)
                         p9_client_clunk(fid);
                         return err;
                 }
-                if (omode & P9_OTRUNC) {
+                if (file->f_flags & O_TRUNC) {
                         i_size_write(inode, 0);
                         inode->i_blocks = 0;
                 }
-                if ((file->f_flags & O_APPEND) && (!v9fs_proto_dotu(v9ses)))
+                if ((file->f_flags & O_APPEND) &&
+                        (!v9fs_proto_dotu(v9ses) && !v9fs_proto_dotl(v9ses)))
                         generic_file_llseek(file, 0, SEEK_END);
         }
 
@@ -139,7 +144,7 @@ ssize_t
 v9fs_file_readn(struct file *filp, char *data, char __user *udata, u32 count,
                u64 offset)
 {
-        int n, total;
+        int n, total, size;
         struct p9_fid *fid = filp->private_data;
 
         P9_DPRINTK(P9_DEBUG_VFS, "fid %d offset %llu count %d\n", fid->fid,
@@ -147,6 +152,7 @@ v9fs_file_readn(struct file *filp, char *data, char __user *udata, u32 count,
 
         n = 0;
         total = 0;
+        size = fid->iounit ? fid->iounit : fid->clnt->msize - P9_IOHDRSZ;
         do {
                 n = p9_client_read(fid, data, udata, offset, count);
                 if (n <= 0)
@@ -160,7 +166,7 @@ v9fs_file_readn(struct file *filp, char *data, char __user *udata, u32 count,
                 offset += n;
                 count -= n;
                 total += n;
-        } while (count > 0 && n == (fid->clnt->msize - P9_IOHDRSZ));
+        } while (count > 0 && n == size);
 
         if (n < 0)
                 total = n;
@@ -183,11 +189,13 @@ v9fs_file_read(struct file *filp, char __user *udata, size_t count,
 {
         int ret;
         struct p9_fid *fid;
+        size_t size;
 
         P9_DPRINTK(P9_DEBUG_VFS, "count %zu offset %lld\n", count, *offset);
         fid = filp->private_data;
 
-        if (count > (fid->clnt->msize - P9_IOHDRSZ))
+        size = fid->iounit ? fid->iounit : fid->clnt->msize - P9_IOHDRSZ;
+        if (count > size)
                 ret = v9fs_file_readn(filp, NULL, udata, count, *offset);
         else
                 ret = p9_client_read(fid, NULL, udata, *offset, count);
@@ -224,9 +232,7 @@ v9fs_file_write(struct file *filp, const char __user * data,
         fid = filp->private_data;
         clnt = fid->clnt;
 
-        rsize = fid->iounit;
-        if (!rsize || rsize > clnt->msize-P9_IOHDRSZ)
-                rsize = clnt->msize - P9_IOHDRSZ;
+        rsize = fid->iounit ? fid->iounit : clnt->msize - P9_IOHDRSZ;
 
         do {
                 if (count < rsize)
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index 4331b3b5ee1c..6e94f3247cec 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -35,6 +35,7 @@
 #include <linux/idr.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
+#include <linux/xattr.h>
 #include <net/9p/9p.h>
 #include <net/9p/client.h>
 
@@ -42,6 +43,7 @@
 #include "v9fs_vfs.h"
 #include "fid.h"
 #include "cache.h"
+#include "xattr.h"
 
 static const struct inode_operations v9fs_dir_inode_operations;
 static const struct inode_operations v9fs_dir_inode_operations_dotu;
@@ -236,6 +238,41 @@ void v9fs_destroy_inode(struct inode *inode)
 #endif
 
 /**
+ * v9fs_get_fsgid_for_create - Helper function to get the gid for creating a
+ * new file system object. This checks the S_ISGID to determine the owning
+ * group of the new file system object.
+ */
+
+static gid_t v9fs_get_fsgid_for_create(struct inode *dir_inode)
+{
+        BUG_ON(dir_inode == NULL);
+
+        if (dir_inode->i_mode & S_ISGID) {
+                /* set_gid bit is set.*/
+                return dir_inode->i_gid;
+        }
+        return current_fsgid();
+}
+
+/**
+ * v9fs_dentry_from_dir_inode - helper function to get the dentry from
+ * dir inode.
+ *
+ */
+
+static struct dentry *v9fs_dentry_from_dir_inode(struct inode *inode)
+{
+        struct dentry *dentry;
+
+        spin_lock(&dcache_lock);
+        /* Directory should have only one entry. */
+        BUG_ON(S_ISDIR(inode->i_mode) && !list_is_singular(&inode->i_dentry));
+        dentry = list_entry(inode->i_dentry.next, struct dentry, d_alias);
+        spin_unlock(&dcache_lock);
+        return dentry;
+}
+
+/**
  * v9fs_get_inode - helper function to setup an inode
  * @sb: superblock
  * @mode: mode to setup inode with
@@ -267,7 +304,13 @@ struct inode *v9fs_get_inode(struct super_block *sb, int mode)
         case S_IFBLK:
         case S_IFCHR:
         case S_IFSOCK:
-                if (!v9fs_proto_dotu(v9ses)) {
+                if (v9fs_proto_dotl(v9ses)) {
+                        inode->i_op = &v9fs_file_inode_operations_dotl;
+                        inode->i_fop = &v9fs_file_operations_dotl;
+                } else if (v9fs_proto_dotu(v9ses)) {
+                        inode->i_op = &v9fs_file_inode_operations;
+                        inode->i_fop = &v9fs_file_operations;
+                } else {
                         P9_DPRINTK(P9_DEBUG_ERROR,
                                    "special files without extended mode\n");
                         err = -EINVAL;
@@ -396,23 +439,14 @@ void v9fs_clear_inode(struct inode *inode)
 #endif
 }
 
-/**
- * v9fs_inode_from_fid - populate an inode by issuing a attribute request
- * @v9ses: session information
- * @fid: fid to issue attribute request for
- * @sb: superblock on which to create inode
- *
- */
-
 static struct inode *
-v9fs_inode_from_fid(struct v9fs_session_info *v9ses, struct p9_fid *fid,
+v9fs_inode(struct v9fs_session_info *v9ses, struct p9_fid *fid,
         struct super_block *sb)
 {
         int err, umode;
-        struct inode *ret;
+        struct inode *ret = NULL;
         struct p9_wstat *st;
 
-        ret = NULL;
         st = p9_client_stat(fid);
         if (IS_ERR(st))
                 return ERR_CAST(st);
@@ -433,15 +467,62 @@ v9fs_inode_from_fid(struct v9fs_session_info *v9ses, struct p9_fid *fid,
 #endif
         p9stat_free(st);
         kfree(st);
-
         return ret;
-
 error:
         p9stat_free(st);
         kfree(st);
         return ERR_PTR(err);
 }
 
+static struct inode *
+v9fs_inode_dotl(struct v9fs_session_info *v9ses, struct p9_fid *fid,
+        struct super_block *sb)
+{
+        struct inode *ret = NULL;
+        int err;
+        struct p9_stat_dotl *st;
+
+        st = p9_client_getattr_dotl(fid, P9_STATS_BASIC);
+        if (IS_ERR(st))
+                return ERR_CAST(st);
+
+        ret = v9fs_get_inode(sb, st->st_mode);
+        if (IS_ERR(ret)) {
+                err = PTR_ERR(ret);
+                goto error;
+        }
+
+        v9fs_stat2inode_dotl(st, ret);
+        ret->i_ino = v9fs_qid2ino(&st->qid);
+#ifdef CONFIG_9P_FSCACHE
+        v9fs_vcookie_set_qid(ret, &st->qid);
+        v9fs_cache_inode_get_cookie(ret);
+#endif
+        kfree(st);
+        return ret;
+error:
+        kfree(st);
+        return ERR_PTR(err);
+}
+
+/**
+ * v9fs_inode_from_fid - Helper routine to populate an inode by
+ * issuing a attribute request
+ * @v9ses: session information
+ * @fid: fid to issue attribute request for
+ * @sb: superblock on which to create inode
+ *
+ */
+static inline struct inode *
+v9fs_inode_from_fid(struct v9fs_session_info *v9ses, struct p9_fid *fid,
+                        struct super_block *sb)
+{
+        if (v9fs_proto_dotl(v9ses))
+                return v9fs_inode_dotl(v9ses, fid, sb);
+        else
+                return v9fs_inode(v9ses, fid, sb);
+}
+
 /**
  * v9fs_remove - helper function to remove files and directories
  * @dir: directory inode that is being deleted
@@ -563,6 +644,118 @@ error:
 }
 
 /**
+ * v9fs_vfs_create_dotl - VFS hook to create files for 9P2000.L protocol.
+ * @dir: directory inode that is being created
+ * @dentry:  dentry that is being deleted
+ * @mode: create permissions
+ * @nd: path information
+ *
+ */
+
+static int
+v9fs_vfs_create_dotl(struct inode *dir, struct dentry *dentry, int mode,
+                struct nameidata *nd)
+{
+        int err = 0;
+        char *name = NULL;
+        gid_t gid;
+        int flags;
+        struct v9fs_session_info *v9ses;
+        struct p9_fid *fid = NULL;
+        struct p9_fid *dfid, *ofid;
+        struct file *filp;
+        struct p9_qid qid;
+        struct inode *inode;
+
+        v9ses = v9fs_inode2v9ses(dir);
+        if (nd && nd->flags & LOOKUP_OPEN)
+                flags = nd->intent.open.flags - 1;
+        else
+                flags = O_RDWR;
+
+        name = (char *) dentry->d_name.name;
+        P9_DPRINTK(P9_DEBUG_VFS, "v9fs_vfs_create_dotl: name:%s flags:0x%x "
+                        "mode:0x%x\n", name, flags, mode);
+
+        dfid = v9fs_fid_lookup(dentry->d_parent);
+        if (IS_ERR(dfid)) {
+                err = PTR_ERR(dfid);
+                P9_DPRINTK(P9_DEBUG_VFS, "fid lookup failed %d\n", err);
+                return err;
+        }
+
+        /* clone a fid to use for creation */
+        ofid = p9_client_walk(dfid, 0, NULL, 1);
+        if (IS_ERR(ofid)) {
+                err = PTR_ERR(ofid);
+                P9_DPRINTK(P9_DEBUG_VFS, "p9_client_walk failed %d\n", err);
+                return err;
+        }
+
+        gid = v9fs_get_fsgid_for_create(dir);
+        err = p9_client_create_dotl(ofid, name, flags, mode, gid, &qid);
+        if (err < 0) {
+                P9_DPRINTK(P9_DEBUG_VFS,
+                                "p9_client_open_dotl failed in creat %d\n",
+                                err);
+                goto error;
+        }
+
+        /* No need to populate the inode if we are not opening the file AND
+         * not in cached mode.
+         */
+        if (!v9ses->cache && !(nd && nd->flags & LOOKUP_OPEN)) {
+                /* Not in cached mode. No need to populate inode with stat */
+                dentry->d_op = &v9fs_dentry_operations;
+                p9_client_clunk(ofid);
+                d_instantiate(dentry, NULL);
+                return 0;
+        }
+
+        /* Now walk from the parent so we can get an unopened fid. */
+        fid = p9_client_walk(dfid, 1, &name, 1);
+        if (IS_ERR(fid)) {
+                err = PTR_ERR(fid);
+                P9_DPRINTK(P9_DEBUG_VFS, "p9_client_walk failed %d\n", err);
+                fid = NULL;
+                goto error;
+        }
+
+        /* instantiate inode and assign the unopened fid to dentry */
+        inode = v9fs_inode_from_fid(v9ses, fid, dir->i_sb);
+        if (IS_ERR(inode)) {
+                err = PTR_ERR(inode);
+                P9_DPRINTK(P9_DEBUG_VFS, "inode creation failed %d\n", err);
+                goto error;
+        }
+        dentry->d_op = &v9fs_cached_dentry_operations;
+        d_instantiate(dentry, inode);
+        err = v9fs_fid_add(dentry, fid);
+        if (err < 0)
+                goto error;
+
+        /* if we are opening a file, assign the open fid to the file */
+        if (nd && nd->flags & LOOKUP_OPEN) {
+                filp = lookup_instantiate_filp(nd, dentry, v9fs_open_created);
+                if (IS_ERR(filp)) {
+                        p9_client_clunk(ofid);
+                        return PTR_ERR(filp);
+                }
+                filp->private_data = ofid;
+        } else
+                p9_client_clunk(ofid);
+
+        return 0;
+
+error:
+        if (ofid)
+                p9_client_clunk(ofid);
+        if (fid)
+                p9_client_clunk(fid);
+        return err;
+}
+
+/**
  * v9fs_vfs_create - VFS hook to create files
  * @dir: directory inode that is being created
  * @dentry:  dentry that is being deleted
@@ -652,6 +845,83 @@ static int v9fs_vfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
         return err;
 }
 
+
+/**
+ * v9fs_vfs_mkdir_dotl - VFS mkdir hook to create a directory
+ * @dir:  inode that is being unlinked
+ * @dentry: dentry that is being unlinked
+ * @mode: mode for new directory
+ *
+ */
+
+static int v9fs_vfs_mkdir_dotl(struct inode *dir, struct dentry *dentry,
+                                        int mode)
+{
+        int err;
+        struct v9fs_session_info *v9ses;
+        struct p9_fid *fid = NULL, *dfid = NULL;
+        gid_t gid;
+        char *name;
+        struct inode *inode;
+        struct p9_qid qid;
+        struct dentry *dir_dentry;
+
+        P9_DPRINTK(P9_DEBUG_VFS, "name %s\n", dentry->d_name.name);
+        err = 0;
+        v9ses = v9fs_inode2v9ses(dir);
+
+        mode |= S_IFDIR;
+        dir_dentry = v9fs_dentry_from_dir_inode(dir);
+        dfid = v9fs_fid_lookup(dir_dentry);
+        if (IS_ERR(dfid)) {
+                err = PTR_ERR(dfid);
+                P9_DPRINTK(P9_DEBUG_VFS, "fid lookup failed %d\n", err);
+                dfid = NULL;
+                goto error;
+        }
+
+        gid = v9fs_get_fsgid_for_create(dir);
+        if (gid < 0) {
+                P9_DPRINTK(P9_DEBUG_VFS, "v9fs_get_fsgid_for_create failed\n");
+                goto error;
+        }
+
+        name = (char *) dentry->d_name.name;
+        err = p9_client_mkdir_dotl(dfid, name, mode, gid, &qid);
+        if (err < 0)
+                goto error;
+
+        /* instantiate inode and assign the unopened fid to the dentry */
+        if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) {
+                fid = p9_client_walk(dfid, 1, &name, 1);
+                if (IS_ERR(fid)) {
+                        err = PTR_ERR(fid);
+                        P9_DPRINTK(P9_DEBUG_VFS, "p9_client_walk failed %d\n",
+                                err);
+                        fid = NULL;
+                        goto error;
+                }
+
+                inode = v9fs_inode_from_fid(v9ses, fid, dir->i_sb);
+                if (IS_ERR(inode)) {
+                        err = PTR_ERR(inode);
+                        P9_DPRINTK(P9_DEBUG_VFS, "inode creation failed %d\n",
+                                err);
+                        goto error;
+                }
+                dentry->d_op = &v9fs_cached_dentry_operations;
+                d_instantiate(dentry, inode);
+                err = v9fs_fid_add(dentry, fid);
+                if (err < 0)
+                        goto error;
+                fid = NULL;
+        }
+error:
+        if (fid)
+                p9_client_clunk(fid);
+        return err;
+}
+
 /**
  * v9fs_vfs_lookup - VFS lookup hook to "walk" to a new inode
  * @dir:  inode that is being walked from
@@ -678,6 +948,7 @@ static struct dentry *v9fs_vfs_lookup(struct inode *dir, struct dentry *dentry,
 
         sb = dir->i_sb;
         v9ses = v9fs_inode2v9ses(dir);
+        /* We can walk d_parent because we hold the dir->i_mutex */
         dfid = v9fs_fid_lookup(dentry->d_parent);
         if (IS_ERR(dfid))
                 return ERR_CAST(dfid);
@@ -785,27 +1056,33 @@ v9fs_vfs_rename(struct inode *old_dir, struct dentry *old_dentry,
                 goto clunk_olddir;
         }
 
+        down_write(&v9ses->rename_sem);
         if (v9fs_proto_dotl(v9ses)) {
                 retval = p9_client_rename(oldfid, newdirfid,
                                         (char *) new_dentry->d_name.name);
                 if (retval != -ENOSYS)
                         goto clunk_newdir;
         }
+        if (old_dentry->d_parent != new_dentry->d_parent) {
+                /*
+                 * 9P .u can only handle file rename in the same directory
+                 */
 
-        /* 9P can only handle file rename in the same directory */
-        if (memcmp(&olddirfid->qid, &newdirfid->qid, sizeof(newdirfid->qid))) {
                 P9_DPRINTK(P9_DEBUG_ERROR,
                                 "old dir and new dir are different\n");
                 retval = -EXDEV;
                 goto clunk_newdir;
         }
-
         v9fs_blank_wstat(&wstat);
         wstat.muid = v9ses->uname;
         wstat.name = (char *) new_dentry->d_name.name;
         retval = p9_client_wstat(oldfid, &wstat);
 
 clunk_newdir:
+        if (!retval)
+                /* successful rename */
+                d_move(old_dentry, new_dentry);
+        up_write(&v9ses->rename_sem);
         p9_client_clunk(newdirfid);
 
 clunk_olddir:
@@ -853,6 +1130,42 @@ v9fs_vfs_getattr(struct vfsmount *mnt, struct dentry *dentry,
         return 0;
 }
 
+static int
+v9fs_vfs_getattr_dotl(struct vfsmount *mnt, struct dentry *dentry,
+                 struct kstat *stat)
+{
+        int err;
+        struct v9fs_session_info *v9ses;
+        struct p9_fid *fid;
+        struct p9_stat_dotl *st;
+
+        P9_DPRINTK(P9_DEBUG_VFS, "dentry: %p\n", dentry);
+        err = -EPERM;
+        v9ses = v9fs_inode2v9ses(dentry->d_inode);
+        if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE)
+                return simple_getattr(mnt, dentry, stat);
+
+        fid = v9fs_fid_lookup(dentry);
+        if (IS_ERR(fid))
+                return PTR_ERR(fid);
+
+        /* Ask for all the fields in stat structure. Server will return
+         * whatever it supports
+         */
+
+        st = p9_client_getattr_dotl(fid, P9_STATS_ALL);
+        if (IS_ERR(st))
+                return PTR_ERR(st);
+
+        v9fs_stat2inode_dotl(st, dentry->d_inode);
+        generic_fillattr(dentry->d_inode, stat);
+        /* Change block size to what the server returned */
+        stat->blksize = st->st_blksize;
+
+        kfree(st);
+        return 0;
+}
+
 /**
  * v9fs_vfs_setattr - set file metadata
  * @dentry: file whose metadata to set
@@ -903,6 +1216,49 @@ static int v9fs_vfs_setattr(struct dentry *dentry, struct iattr *iattr)
 }
 
 /**
+ * v9fs_vfs_setattr_dotl - set file metadata
+ * @dentry: file whose metadata to set
+ * @iattr: metadata assignment structure
+ *
+ */
+
+static int v9fs_vfs_setattr_dotl(struct dentry *dentry, struct iattr *iattr)
+{
+        int retval;
+        struct v9fs_session_info *v9ses;
+        struct p9_fid *fid;
+        struct p9_iattr_dotl p9attr;
+
+        P9_DPRINTK(P9_DEBUG_VFS, "\n");
+
+        retval = inode_change_ok(dentry->d_inode, iattr);
+        if (retval)
+                return retval;
+
+        p9attr.valid = iattr->ia_valid;
+        p9attr.mode = iattr->ia_mode;
+        p9attr.uid = iattr->ia_uid;
+        p9attr.gid = iattr->ia_gid;
+        p9attr.size = iattr->ia_size;
+        p9attr.atime_sec = iattr->ia_atime.tv_sec;
+        p9attr.atime_nsec = iattr->ia_atime.tv_nsec;
+        p9attr.mtime_sec = iattr->ia_mtime.tv_sec;
+        p9attr.mtime_nsec = iattr->ia_mtime.tv_nsec;
+
+        retval = -EPERM;
+        v9ses = v9fs_inode2v9ses(dentry->d_inode);
+        fid = v9fs_fid_lookup(dentry);
+        if (IS_ERR(fid))
+                return PTR_ERR(fid);
+
+        retval = p9_client_setattr(fid, &p9attr);
+        if (retval >= 0)
+                retval = inode_setattr(dentry->d_inode, iattr);
+
+        return retval;
+}
+
+/**
  * v9fs_stat2inode - populate an inode structure with mistat info
  * @stat: Plan 9 metadata (mistat) structure
  * @inode: inode to populate
@@ -980,6 +1336,77 @@ v9fs_stat2inode(struct p9_wstat *stat, struct inode *inode,
 }
 
 /**
+ * v9fs_stat2inode_dotl - populate an inode structure with stat info
+ * @stat: stat structure
+ * @inode: inode to populate
+ * @sb: superblock of filesystem
+ *
+ */
+
+void
+v9fs_stat2inode_dotl(struct p9_stat_dotl *stat, struct inode *inode)
+{
+
+        if ((stat->st_result_mask & P9_STATS_BASIC) == P9_STATS_BASIC) {
+                inode->i_atime.tv_sec = stat->st_atime_sec;
+                inode->i_atime.tv_nsec = stat->st_atime_nsec;
+                inode->i_mtime.tv_sec = stat->st_mtime_sec;
+                inode->i_mtime.tv_nsec = stat->st_mtime_nsec;
+                inode->i_ctime.tv_sec = stat->st_ctime_sec;
+                inode->i_ctime.tv_nsec = stat->st_ctime_nsec;
+                inode->i_uid = stat->st_uid;
+                inode->i_gid = stat->st_gid;
+                inode->i_nlink = stat->st_nlink;
+                inode->i_mode = stat->st_mode;
+                inode->i_rdev = new_decode_dev(stat->st_rdev);
+
+                if ((S_ISBLK(inode->i_mode)) || (S_ISCHR(inode->i_mode)))
+                        init_special_inode(inode, inode->i_mode, inode->i_rdev);
+
+                i_size_write(inode, stat->st_size);
+                inode->i_blocks = stat->st_blocks;
+        } else {
+                if (stat->st_result_mask & P9_STATS_ATIME) {
+                        inode->i_atime.tv_sec = stat->st_atime_sec;
+                        inode->i_atime.tv_nsec = stat->st_atime_nsec;
+                }
+                if (stat->st_result_mask & P9_STATS_MTIME) {
+                        inode->i_mtime.tv_sec = stat->st_mtime_sec;
+                        inode->i_mtime.tv_nsec = stat->st_mtime_nsec;
+                }
+                if (stat->st_result_mask & P9_STATS_CTIME) {
+                        inode->i_ctime.tv_sec = stat->st_ctime_sec;
+                        inode->i_ctime.tv_nsec = stat->st_ctime_nsec;
+                }
+                if (stat->st_result_mask & P9_STATS_UID)
+                        inode->i_uid = stat->st_uid;
+                if (stat->st_result_mask & P9_STATS_GID)
+                        inode->i_gid = stat->st_gid;
+                if (stat->st_result_mask & P9_STATS_NLINK)
+                        inode->i_nlink = stat->st_nlink;
+                if (stat->st_result_mask & P9_STATS_MODE) {
+                        inode->i_mode = stat->st_mode;
+                        if ((S_ISBLK(inode->i_mode)) ||
+                                                (S_ISCHR(inode->i_mode)))
+                                init_special_inode(inode, inode->i_mode,
+                                                                inode->i_rdev);
+                }
+                if (stat->st_result_mask & P9_STATS_RDEV)
+                        inode->i_rdev = new_decode_dev(stat->st_rdev);
+                if (stat->st_result_mask & P9_STATS_SIZE)
+                        i_size_write(inode, stat->st_size);
+                if (stat->st_result_mask & P9_STATS_BLOCKS)
+                        inode->i_blocks = stat->st_blocks;
+        }
+        if (stat->st_result_mask & P9_STATS_GEN)
+                        inode->i_generation = stat->st_gen;
+
+        /* Currently we don't support P9_STATS_BTIME and P9_STATS_DATA_VERSION
+         * because the inode structure does not have fields for them.
+         */
+}
+
+/**
  * v9fs_qid2ino - convert qid into inode number
  * @qid: qid to hash
  *
@@ -1022,7 +1449,7 @@ static int v9fs_readlink(struct dentry *dentry, char *buffer, int buflen)
         if (IS_ERR(fid))
                 return PTR_ERR(fid);
 
-        if (!v9fs_proto_dotu(v9ses))
+        if (!v9fs_proto_dotu(v9ses) && !v9fs_proto_dotl(v9ses))
                 return -EBADF;
 
         st = p9_client_stat(fid);
@@ -1128,6 +1555,99 @@ static int v9fs_vfs_mkspecial(struct inode *dir, struct dentry *dentry,
 }
 
 /**
+ * v9fs_vfs_symlink_dotl - helper function to create symlinks
+ * @dir: directory inode containing symlink
+ * @dentry: dentry for symlink
+ * @symname: symlink data
+ *
+ * See Also: 9P2000.L RFC for more information
+ *
+ */
+
+static int
+v9fs_vfs_symlink_dotl(struct inode *dir, struct dentry *dentry,
+                const char *symname)
+{
+        struct v9fs_session_info *v9ses;
+        struct p9_fid *dfid;
+        struct p9_fid *fid = NULL;
+        struct inode *inode;
+        struct p9_qid qid;
+        char *name;
+        int err;
+        gid_t gid;
+
+        name = (char *) dentry->d_name.name;
+        P9_DPRINTK(P9_DEBUG_VFS, "v9fs_vfs_symlink_dotl : %lu,%s,%s\n",
+                        dir->i_ino, name, symname);
+        v9ses = v9fs_inode2v9ses(dir);
+
+        dfid = v9fs_fid_lookup(dentry->d_parent);
+        if (IS_ERR(dfid)) {
+                err = PTR_ERR(dfid);
+                P9_DPRINTK(P9_DEBUG_VFS, "fid lookup failed %d\n", err);
+                return err;
+        }
+
+        gid = v9fs_get_fsgid_for_create(dir);
+
+        if (gid < 0) {
+                P9_DPRINTK(P9_DEBUG_VFS, "v9fs_get_egid failed %d\n", gid);
+                goto error;
+        }
+
+        /* Server doesn't alter fid on TSYMLINK. Hence no need to clone it. */
+        err = p9_client_symlink(dfid, name, (char *)symname, gid, &qid);
+
+        if (err < 0) {
+                P9_DPRINTK(P9_DEBUG_VFS, "p9_client_symlink failed %d\n", err);
+                goto error;
+        }
+
+        if (v9ses->cache) {
+                /* Now walk from the parent so we can get an unopened fid. */
+                fid = p9_client_walk(dfid, 1, &name, 1);
+                if (IS_ERR(fid)) {
+                        err = PTR_ERR(fid);
+                        P9_DPRINTK(P9_DEBUG_VFS, "p9_client_walk failed %d\n",
+                                        err);
+                        fid = NULL;
+                        goto error;
+                }
+
+                /* instantiate inode and assign the unopened fid to dentry */
+                inode = v9fs_inode_from_fid(v9ses, fid, dir->i_sb);
+                if (IS_ERR(inode)) {
+                        err = PTR_ERR(inode);
+                        P9_DPRINTK(P9_DEBUG_VFS, "inode creation failed %d\n",
+                                        err);
+                        goto error;
+                }
+                dentry->d_op = &v9fs_cached_dentry_operations;
+                d_instantiate(dentry, inode);
+                err = v9fs_fid_add(dentry, fid);
+                if (err < 0)
+                        goto error;
+                fid = NULL;
+        } else {
+                /* Not in cached mode. No need to populate inode with stat */
+                inode = v9fs_get_inode(dir->i_sb, S_IFLNK);
+                if (IS_ERR(inode)) {
+                        err = PTR_ERR(inode);
+                        goto error;
+                }
+                dentry->d_op = &v9fs_dentry_operations;
+                d_instantiate(dentry, inode);
+        }
+
+error:
+        if (fid)
+                p9_client_clunk(fid);
+
+        return err;
+}
+
+/**
  * v9fs_vfs_symlink - helper function to create symlinks
  * @dir: directory inode containing symlink
  * @dentry: dentry for symlink
@@ -1186,6 +1706,76 @@ clunk_fid:
 }
 
 /**
+ * v9fs_vfs_link_dotl - create a hardlink for dotl
+ * @old_dentry: dentry for file to link to
+ * @dir: inode destination for new link
+ * @dentry: dentry for link
+ *
+ */
+
+static int
+v9fs_vfs_link_dotl(struct dentry *old_dentry, struct inode *dir,
+                struct dentry *dentry)
+{
+        int err;
+        struct p9_fid *dfid, *oldfid;
+        char *name;
+        struct v9fs_session_info *v9ses;
+        struct dentry *dir_dentry;
+
+        P9_DPRINTK(P9_DEBUG_VFS, "dir ino: %lu, old_name: %s, new_name: %s\n",
+                        dir->i_ino, old_dentry->d_name.name,
+                        dentry->d_name.name);
+
+        v9ses = v9fs_inode2v9ses(dir);
+        dir_dentry = v9fs_dentry_from_dir_inode(dir);
+        dfid = v9fs_fid_lookup(dir_dentry);
+        if (IS_ERR(dfid))
+                return PTR_ERR(dfid);
+
+        oldfid = v9fs_fid_lookup(old_dentry);
+        if (IS_ERR(oldfid))
+                return PTR_ERR(oldfid);
+
+        name = (char *) dentry->d_name.name;
+
+        err = p9_client_link(dfid, oldfid, (char *)dentry->d_name.name);
+
+        if (err < 0) {
+                P9_DPRINTK(P9_DEBUG_VFS, "p9_client_link failed %d\n", err);
+                return err;
+        }
+
+        if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) {
+                /* Get the latest stat info from server. */
+                struct p9_fid *fid;
+                struct p9_stat_dotl *st;
+
+                fid = v9fs_fid_lookup(old_dentry);
+                if (IS_ERR(fid))
+                        return PTR_ERR(fid);
+
+                st = p9_client_getattr_dotl(fid, P9_STATS_BASIC);
+                if (IS_ERR(st))
+                        return PTR_ERR(st);
+
+                v9fs_stat2inode_dotl(st, old_dentry->d_inode);
+
+                kfree(st);
+        } else {
+                /* Caching disabled. No need to get upto date stat info.
+                 * This dentry will be released immediately. So, just i_count++
+                 */
+                atomic_inc(&old_dentry->d_inode->i_count);
+        }
+
+        dentry->d_op = old_dentry->d_op;
+        d_instantiate(dentry, old_dentry->d_inode);
+
+        return err;
+}
+
+/**
  * v9fs_vfs_mknod - create a special file
  * @dir: inode destination for new link
  * @dentry: dentry for file
@@ -1230,6 +1820,100 @@ v9fs_vfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t rdev)
         return retval;
 }
 
+/**
+ * v9fs_vfs_mknod_dotl - create a special file
+ * @dir: inode destination for new link
+ * @dentry: dentry for file
+ * @mode: mode for creation
+ * @rdev: device associated with special file
+ *
+ */
+static int
+v9fs_vfs_mknod_dotl(struct inode *dir, struct dentry *dentry, int mode,
+                dev_t rdev)
+{
+        int err;
+        char *name;
+        struct v9fs_session_info *v9ses;
+        struct p9_fid *fid = NULL, *dfid = NULL;
+        struct inode *inode;
+        gid_t gid;
+        struct p9_qid qid;
+        struct dentry *dir_dentry;
+
+        P9_DPRINTK(P9_DEBUG_VFS,
+                " %lu,%s mode: %x MAJOR: %u MINOR: %u\n", dir->i_ino,
+                dentry->d_name.name, mode, MAJOR(rdev), MINOR(rdev));
+
+        if (!new_valid_dev(rdev))
+                return -EINVAL;
+
+        v9ses = v9fs_inode2v9ses(dir);
+        dir_dentry = v9fs_dentry_from_dir_inode(dir);
+        dfid = v9fs_fid_lookup(dir_dentry);
+        if (IS_ERR(dfid)) {
+                err = PTR_ERR(dfid);
+                P9_DPRINTK(P9_DEBUG_VFS, "fid lookup failed %d\n", err);
+                dfid = NULL;
+                goto error;
+        }
+
+        gid = v9fs_get_fsgid_for_create(dir);
+        if (gid < 0) {
+                P9_DPRINTK(P9_DEBUG_VFS, "v9fs_get_fsgid_for_create failed\n");
+                goto error;
+        }
+
+        name = (char *) dentry->d_name.name;
+
+        err = p9_client_mknod_dotl(dfid, name, mode, rdev, gid, &qid);
+        if (err < 0)
+                goto error;
+
+        /* instantiate inode and assign the unopened fid to the dentry */
+        if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) {
+                fid = p9_client_walk(dfid, 1, &name, 1);
+                if (IS_ERR(fid)) {
+                        err = PTR_ERR(fid);
+                        P9_DPRINTK(P9_DEBUG_VFS, "p9_client_walk failed %d\n",
+                                err);
+                        fid = NULL;
+                        goto error;
+                }
+
+                inode = v9fs_inode_from_fid(v9ses, fid, dir->i_sb);
+                if (IS_ERR(inode)) {
+                        err = PTR_ERR(inode);
+                        P9_DPRINTK(P9_DEBUG_VFS, "inode creation failed %d\n",
+                                err);
+                        goto error;
+                }
+                dentry->d_op = &v9fs_cached_dentry_operations;
+                d_instantiate(dentry, inode);
+                err = v9fs_fid_add(dentry, fid);
+                if (err < 0)
+                        goto error;
+                fid = NULL;
+        } else {
+                /*
+                 * Not in cached mode. No need to populate inode with stat.
+                 * socket syscall returns a fd, so we need instantiate
+                 */
+                inode = v9fs_get_inode(dir->i_sb, mode);
+                if (IS_ERR(inode)) {
+                        err = PTR_ERR(inode);
+                        goto error;
+                }
+                dentry->d_op = &v9fs_dentry_operations;
+                d_instantiate(dentry, inode);
+        }
+
+error:
+        if (fid)
+                p9_client_clunk(fid);
+        return err;
+}
+
 static const struct inode_operations v9fs_dir_inode_operations_dotu = {
         .create = v9fs_vfs_create,
         .lookup = v9fs_vfs_lookup,
@@ -1238,24 +1922,29 @@ static const struct inode_operations v9fs_dir_inode_operations_dotu = {
         .unlink = v9fs_vfs_unlink,
         .mkdir = v9fs_vfs_mkdir,
         .rmdir = v9fs_vfs_rmdir,
-        .mknod = v9fs_vfs_mknod,
+        .mknod = v9fs_vfs_mknod_dotl,
         .rename = v9fs_vfs_rename,
         .getattr = v9fs_vfs_getattr,
         .setattr = v9fs_vfs_setattr,
 };
 
 static const struct inode_operations v9fs_dir_inode_operations_dotl = {
-        .create = v9fs_vfs_create,
+        .create = v9fs_vfs_create_dotl,
         .lookup = v9fs_vfs_lookup,
-        .symlink = v9fs_vfs_symlink,
-        .link = v9fs_vfs_link,
+        .link = v9fs_vfs_link_dotl,
+        .symlink = v9fs_vfs_symlink_dotl,
         .unlink = v9fs_vfs_unlink,
-        .mkdir = v9fs_vfs_mkdir,
+        .mkdir = v9fs_vfs_mkdir_dotl,
         .rmdir = v9fs_vfs_rmdir,
-        .mknod = v9fs_vfs_mknod,
+        .mknod = v9fs_vfs_mknod_dotl,
         .rename = v9fs_vfs_rename,
-        .getattr = v9fs_vfs_getattr,
-        .setattr = v9fs_vfs_setattr,
+        .getattr = v9fs_vfs_getattr_dotl,
+        .setattr = v9fs_vfs_setattr_dotl,
+        .setxattr = generic_setxattr,
+        .getxattr = generic_getxattr,
+        .removexattr = generic_removexattr,
+        .listxattr = v9fs_listxattr,
+
 };
 
 static const struct inode_operations v9fs_dir_inode_operations = {
@@ -1276,8 +1965,12 @@ static const struct inode_operations v9fs_file_inode_operations = {
 };
 
 static const struct inode_operations v9fs_file_inode_operations_dotl = {
-        .getattr = v9fs_vfs_getattr,
-        .setattr = v9fs_vfs_setattr,
+        .getattr = v9fs_vfs_getattr_dotl,
+        .setattr = v9fs_vfs_setattr_dotl,
+        .setxattr = generic_setxattr,
+        .getxattr = generic_getxattr,
+        .removexattr = generic_removexattr,
+        .listxattr = v9fs_listxattr,
 };
 
 static const struct inode_operations v9fs_symlink_inode_operations = {
@@ -1292,6 +1985,10 @@ static const struct inode_operations v9fs_symlink_inode_operations_dotl = {
         .readlink = generic_readlink,
         .follow_link = v9fs_vfs_follow_link,
         .put_link = v9fs_vfs_put_link,
-        .getattr = v9fs_vfs_getattr,
-        .setattr = v9fs_vfs_setattr,
+        .getattr = v9fs_vfs_getattr_dotl,
+        .setattr = v9fs_vfs_setattr_dotl,
+        .setxattr = generic_setxattr,
+        .getxattr = generic_getxattr,
+        .removexattr = generic_removexattr,
+        .listxattr = v9fs_listxattr,
 };
diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c
index be74d020436e..4b9ede0b41b7 100644
--- a/fs/9p/vfs_super.c
+++ b/fs/9p/vfs_super.c
@@ -45,6 +45,7 @@
 #include "v9fs.h"
 #include "v9fs_vfs.h"
 #include "fid.h"
+#include "xattr.h"
 
 static const struct super_operations v9fs_super_ops, v9fs_super_ops_dotl;
 
@@ -77,9 +78,10 @@ v9fs_fill_super(struct super_block *sb, struct v9fs_session_info *v9ses,
         sb->s_blocksize_bits = fls(v9ses->maxdata - 1);
         sb->s_blocksize = 1 << sb->s_blocksize_bits;
         sb->s_magic = V9FS_MAGIC;
-        if (v9fs_proto_dotl(v9ses))
+        if (v9fs_proto_dotl(v9ses)) {
                 sb->s_op = &v9fs_super_ops_dotl;
-        else
+                sb->s_xattr = v9fs_xattr_handlers;
+        } else
                 sb->s_op = &v9fs_super_ops;
         sb->s_bdi = &v9ses->bdi;
 
@@ -107,7 +109,6 @@ static int v9fs_get_sb(struct file_system_type *fs_type, int flags,
         struct inode *inode = NULL;
         struct dentry *root = NULL;
         struct v9fs_session_info *v9ses = NULL;
-        struct p9_wstat *st = NULL;
         int mode = S_IRWXUGO | S_ISVTX;
         struct p9_fid *fid;
         int retval = 0;
@@ -124,16 +125,10 @@ static int v9fs_get_sb(struct file_system_type *fs_type, int flags,
                 goto close_session;
         }
 
-        st = p9_client_stat(fid);
-        if (IS_ERR(st)) {
-                retval = PTR_ERR(st);
-                goto clunk_fid;
-        }
-
         sb = sget(fs_type, NULL, v9fs_set_super, v9ses);
         if (IS_ERR(sb)) {
                 retval = PTR_ERR(sb);
-                goto free_stat;
+                goto clunk_fid;
         }
         v9fs_fill_super(sb, v9ses, flags, data);
 
@@ -151,22 +146,38 @@ static int v9fs_get_sb(struct file_system_type *fs_type, int flags,
         }
 
         sb->s_root = root;
-        root->d_inode->i_ino = v9fs_qid2ino(&st->qid);
 
-        v9fs_stat2inode(st, root->d_inode, sb);
+        if (v9fs_proto_dotl(v9ses)) {
+                struct p9_stat_dotl *st = NULL;
+                st = p9_client_getattr_dotl(fid, P9_STATS_BASIC);
+                if (IS_ERR(st)) {
+                        retval = PTR_ERR(st);
+                        goto clunk_fid;
+                }
+
+                v9fs_stat2inode_dotl(st, root->d_inode);
+                kfree(st);
+        } else {
+                struct p9_wstat *st = NULL;
+                st = p9_client_stat(fid);
+                if (IS_ERR(st)) {
+                        retval = PTR_ERR(st);
+                        goto clunk_fid;
+                }
+
+                root->d_inode->i_ino = v9fs_qid2ino(&st->qid);
+                v9fs_stat2inode(st, root->d_inode, sb);
+
+                p9stat_free(st);
+                kfree(st);
+        }
 
         v9fs_fid_add(root, fid);
-        p9stat_free(st);
-        kfree(st);
 
 P9_DPRINTK(P9_DEBUG_VFS, " simple set mount, return 0\n");
         simple_set_mnt(mnt, sb);
         return 0;
 
-free_stat:
-        p9stat_free(st);
-        kfree(st);
-
 clunk_fid:
         p9_client_clunk(fid);
 
@@ -176,8 +187,6 @@ close_session:
         return retval;
 
 release_sb:
-        p9stat_free(st);
-        kfree(st);
         deactivate_locked_super(sb);
         return retval;
 }
@@ -278,4 +287,5 @@ struct file_system_type v9fs_fs_type = {
         .get_sb = v9fs_get_sb,
         .kill_sb = v9fs_kill_super,
         .owner = THIS_MODULE,
+        .fs_flags = FS_RENAME_DOES_D_MOVE,
 };
diff --git a/fs/9p/xattr.c b/fs/9p/xattr.c
new file mode 100644
index 000000000000..f88e5c2dc873
--- /dev/null
+++ b/fs/9p/xattr.c
@@ -0,0 +1,160 @@
+/*
+ * Copyright IBM Corporation, 2010
+ * Author Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2.1 of the GNU Lesser General Public License
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/fs.h>
+#include <linux/sched.h>
+#include <net/9p/9p.h>
+#include <net/9p/client.h>
+
+#include "fid.h"
+#include "xattr.h"
+
+/*
+ * v9fs_xattr_get()
+ *
+ * Copy an extended attribute into the buffer
+ * provided, or compute the buffer size required.
+ * Buffer is NULL to compute the size of the buffer required.
+ *
+ * Returns a negative error number on failure, or the number of bytes
+ * used / required on success.
+ */
+ssize_t v9fs_xattr_get(struct dentry *dentry, const char *name,
+                       void *buffer, size_t buffer_size)
+{
+        ssize_t retval;
+        int msize, read_count;
+        u64 offset = 0, attr_size;
+        struct p9_fid *fid, *attr_fid;
+
+        P9_DPRINTK(P9_DEBUG_VFS, "%s: name = %s value_len = %zu\n",
+                __func__, name, buffer_size);
+
+        fid = v9fs_fid_lookup(dentry);
+        if (IS_ERR(fid))
+                return PTR_ERR(fid);
+
+        attr_fid = p9_client_xattrwalk(fid, name, &attr_size);
+        if (IS_ERR(attr_fid)) {
+                retval = PTR_ERR(attr_fid);
+                P9_DPRINTK(P9_DEBUG_VFS,
+                        "p9_client_attrwalk failed %zd\n", retval);
+                attr_fid = NULL;
+                goto error;
+        }
+        if (!buffer_size) {
+                /* request to get the attr_size */
+                retval = attr_size;
+                goto error;
+        }
+        if (attr_size > buffer_size) {
+                retval = -ERANGE;
+                goto error;
+        }
+        msize = attr_fid->clnt->msize;
+        while (attr_size) {
+                if (attr_size > (msize - P9_IOHDRSZ))
+                        read_count = msize - P9_IOHDRSZ;
+                else
+                        read_count = attr_size;
+                read_count = p9_client_read(attr_fid, ((char *)buffer)+offset,
+                                        NULL, offset, read_count);
+                if (read_count < 0) {
+                        /* error in xattr read */
+                        retval = read_count;
+                        goto error;
+                }
+                offset += read_count;
+                attr_size -= read_count;
+        }
+        /* Total read xattr bytes */
+        retval = offset;
+error:
+        if (attr_fid)
+                p9_client_clunk(attr_fid);
+        return retval;
+
+}
+
+/*
+ * v9fs_xattr_set()
+ *
+ * Create, replace or remove an extended attribute for this inode. Buffer
+ * is NULL to remove an existing extended attribute, and non-NULL to
+ * either replace an existing extended attribute, or create a new extended
+ * attribute. The flags XATTR_REPLACE and XATTR_CREATE
+ * specify that an extended attribute must exist and must not exist
+ * previous to the call, respectively.
+ *
+ * Returns 0, or a negative error number on failure.
+ */
+int v9fs_xattr_set(struct dentry *dentry, const char *name,
+                   const void *value, size_t value_len, int flags)
+{
+        u64 offset = 0;
+        int retval, msize, write_count;
+        struct p9_fid *fid = NULL;
+
+        P9_DPRINTK(P9_DEBUG_VFS, "%s: name = %s value_len = %zu flags = %d\n",
+                __func__, name, value_len, flags);
+
+        fid = v9fs_fid_clone(dentry);
+        if (IS_ERR(fid)) {
+                retval = PTR_ERR(fid);
+                fid = NULL;
+                goto error;
+        }
+        /*
+         * On success fid points to xattr
+         */
+        retval = p9_client_xattrcreate(fid, name, value_len, flags);
+        if (retval < 0) {
+                P9_DPRINTK(P9_DEBUG_VFS,
+                        "p9_client_xattrcreate failed %d\n", retval);
+                goto error;
+        }
+        msize = fid->clnt->msize;;
+        while (value_len) {
+                if (value_len > (msize - P9_IOHDRSZ))
+                        write_count = msize - P9_IOHDRSZ;
+                else
+                        write_count = value_len;
+                write_count = p9_client_write(fid, ((char *)value)+offset,
+                                        NULL, offset, write_count);
+                if (write_count < 0) {
+                        /* error in xattr write */
+                        retval = write_count;
+                        goto error;
+                }
+                offset += write_count;
+                value_len -= write_count;
+        }
+        /* Total read xattr bytes */
+        retval = offset;
+error:
+        if (fid)
+                retval = p9_client_clunk(fid);
+        return retval;
+}
+
+ssize_t v9fs_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size)
+{
+        return v9fs_xattr_get(dentry, NULL, buffer, buffer_size);
+}
+
+const struct xattr_handler *v9fs_xattr_handlers[] = {
+        &v9fs_xattr_user_handler,
+        NULL
+};
diff --git a/fs/9p/xattr.h b/fs/9p/xattr.h
new file mode 100644
index 000000000000..9ddf672ae5c4
--- /dev/null
+++ b/fs/9p/xattr.h
@@ -0,0 +1,27 @@
+/*
+ * Copyright IBM Corporation, 2010
+ * Author Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2.1 of the GNU Lesser General Public License
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ */
+#ifndef FS_9P_XATTR_H
+#define FS_9P_XATTR_H
+
+#include <linux/xattr.h>
+
+extern const struct xattr_handler *v9fs_xattr_handlers[];
+extern struct xattr_handler v9fs_xattr_user_handler;
+
+extern ssize_t v9fs_xattr_get(struct dentry *, const char *,
+                              void *, size_t);
+extern int v9fs_xattr_set(struct dentry *, const char *,
+                          const void *, size_t, int);
+extern ssize_t v9fs_listxattr(struct dentry *, char *, size_t);
+#endif /* FS_9P_XATTR_H */
diff --git a/fs/9p/xattr_user.c b/fs/9p/xattr_user.c
new file mode 100644
index 000000000000..d0b701b72080
--- /dev/null
+++ b/fs/9p/xattr_user.c
@@ -0,0 +1,80 @@
+/*
+ * Copyright IBM Corporation, 2010
+ * Author Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2.1 of the GNU Lesser General Public License
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ */
+
+
+#include <linux/module.h>
+#include <linux/string.h>
+#include <linux/fs.h>
+#include <linux/slab.h>
+#include "xattr.h"
+
+static int v9fs_xattr_user_get(struct dentry *dentry, const char *name,
+                        void *buffer, size_t size, int type)
+{
+        int retval;
+        char *full_name;
+        size_t name_len;
+        size_t prefix_len = XATTR_USER_PREFIX_LEN;
+
+        if (name == NULL)
+                return -EINVAL;
+
+        if (strcmp(name, "") == 0)
+                return -EINVAL;
+
+        name_len = strlen(name);
+        full_name = kmalloc(prefix_len + name_len + 1 , GFP_KERNEL);
+        if (!full_name)
+                return -ENOMEM;
+        memcpy(full_name, XATTR_USER_PREFIX, prefix_len);
+        memcpy(full_name+prefix_len, name, name_len);
+        full_name[prefix_len + name_len] = '\0';
+
+        retval = v9fs_xattr_get(dentry, full_name, buffer, size);
+        kfree(full_name);
+        return retval;
+}
+
+static int v9fs_xattr_user_set(struct dentry *dentry, const char *name,
+                        const void *value, size_t size, int flags, int type)
+{
+        int retval;
+        char *full_name;
+        size_t name_len;
+        size_t prefix_len = XATTR_USER_PREFIX_LEN;
+
+        if (name == NULL)
+                return -EINVAL;
+
+        if (strcmp(name, "") == 0)
+                return -EINVAL;
+
+        name_len = strlen(name);
+        full_name = kmalloc(prefix_len + name_len + 1 , GFP_KERNEL);
+        if (!full_name)
+                return -ENOMEM;
+        memcpy(full_name, XATTR_USER_PREFIX, prefix_len);
+        memcpy(full_name + prefix_len, name, name_len);
+        full_name[prefix_len + name_len] = '\0';
+
+        retval = v9fs_xattr_set(dentry, full_name, value, size, flags);
+        kfree(full_name);
+        return retval;
+}
+
+struct xattr_handler v9fs_xattr_user_handler = {
+        .prefix = XATTR_USER_PREFIX,
+        .get    = v9fs_xattr_user_get,
+        .set    = v9fs_xattr_user_set,
+};
diff --git a/include/linux/virtio_9p.h b/include/linux/virtio_9p.h
index 5cf11765146b..395c38a47adb 100644
--- a/include/linux/virtio_9p.h
+++ b/include/linux/virtio_9p.h
@@ -4,6 +4,7 @@
  * compatible drivers/servers. */
 #include <linux/virtio_ids.h>
 #include <linux/virtio_config.h>
+#include <linux/types.h>
 
 /* The feature bitmap for virtio 9P */
 
diff --git a/include/net/9p/9p.h b/include/net/9p/9p.h
index 156c26bb8bd7..a8de812ccbc8 100644
--- a/include/net/9p/9p.h
+++ b/include/net/9p/9p.h
@@ -88,8 +88,16 @@ do { \
  * enum p9_msg_t - 9P message types
  * @P9_TSTATFS: file system status request
  * @P9_RSTATFS: file system status response
+ * @P9_TSYMLINK: make symlink request
+ * @P9_RSYMLINK: make symlink response
+ * @P9_TMKNOD: create a special file object request
+ * @P9_RMKNOD: create a special file object response
+ * @P9_TLCREATE: prepare a handle for I/O on an new file for 9P2000.L
+ * @P9_RLCREATE: response with file access information for 9P2000.L
  * @P9_TRENAME: rename request
  * @P9_RRENAME: rename response
+ * @P9_TMKDIR: create a directory request
+ * @P9_RMKDIR: create a directory response
  * @P9_TVERSION: version handshake request
  * @P9_RVERSION: version handshake response
  * @P9_TAUTH: request to establish authentication channel
@@ -131,8 +139,30 @@ do { \
 enum p9_msg_t {
         P9_TSTATFS = 8,
         P9_RSTATFS,
+        P9_TLOPEN = 12,
+        P9_RLOPEN,
+        P9_TLCREATE = 14,
+        P9_RLCREATE,
+        P9_TSYMLINK = 16,
+        P9_RSYMLINK,
+        P9_TMKNOD = 18,
+        P9_RMKNOD,
         P9_TRENAME = 20,
         P9_RRENAME,
+        P9_TGETATTR = 24,
+        P9_RGETATTR,
+        P9_TSETATTR = 26,
+        P9_RSETATTR,
+        P9_TXATTRWALK = 30,
+        P9_RXATTRWALK,
+        P9_TXATTRCREATE = 32,
+        P9_RXATTRCREATE,
+        P9_TREADDIR = 40,
+        P9_RREADDIR,
+        P9_TLINK = 70,
+        P9_RLINK,
+        P9_TMKDIR = 72,
+        P9_RMKDIR,
         P9_TVERSION = 100,
         P9_RVERSION,
         P9_TAUTH = 102,
@@ -275,6 +305,9 @@ enum p9_qid_t {
 /* ample room for Twrite/Rread header */
 #define P9_IOHDRSZ      24
 
+/* Room for readdir header */
+#define P9_READDIRHDRSZ 24
+
 /**
  * struct p9_str - length prefixed string type
  * @len: length of the string
@@ -357,6 +390,74 @@ struct p9_wstat {
         u32 n_muid;             /* 9p2000.u extensions */
 };
 
+struct p9_stat_dotl {
+        u64 st_result_mask;
+        struct p9_qid qid;
+        u32 st_mode;
+        u32 st_uid;
+        u32 st_gid;
+        u64 st_nlink;
+        u64 st_rdev;
+        u64 st_size;
+        u64 st_blksize;
+        u64 st_blocks;
+        u64 st_atime_sec;
+        u64 st_atime_nsec;
+        u64 st_mtime_sec;
+        u64 st_mtime_nsec;
+        u64 st_ctime_sec;
+        u64 st_ctime_nsec;
+        u64 st_btime_sec;
+        u64 st_btime_nsec;
+        u64 st_gen;
+        u64 st_data_version;
+};
+
+#define P9_STATS_MODE           0x00000001ULL
+#define P9_STATS_NLINK          0x00000002ULL
+#define P9_STATS_UID            0x00000004ULL
+#define P9_STATS_GID            0x00000008ULL
+#define P9_STATS_RDEV           0x00000010ULL
+#define P9_STATS_ATIME          0x00000020ULL
+#define P9_STATS_MTIME          0x00000040ULL
+#define P9_STATS_CTIME          0x00000080ULL
+#define P9_STATS_INO            0x00000100ULL
+#define P9_STATS_SIZE           0x00000200ULL
+#define P9_STATS_BLOCKS         0x00000400ULL
+
+#define P9_STATS_BTIME          0x00000800ULL
+#define P9_STATS_GEN            0x00001000ULL
+#define P9_STATS_DATA_VERSION   0x00002000ULL
+
+#define P9_STATS_BASIC          0x000007ffULL /* Mask for fields up to BLOCKS */
+#define P9_STATS_ALL            0x00003fffULL /* Mask for All fields above */
+
+/**
+ * struct p9_iattr_dotl - P9 inode attribute for setattr
+ * @valid: bitfield specifying which fields are valid
+ *         same as in struct iattr
+ * @mode: File permission bits
+ * @uid: user id of owner
+ * @gid: group id
+ * @size: File size
+ * @atime_sec: Last access time, seconds
+ * @atime_nsec: Last access time, nanoseconds
+ * @mtime_sec: Last modification time, seconds
+ * @mtime_nsec: Last modification time, nanoseconds
+ */
+
+struct p9_iattr_dotl {
+        u32 valid;
+        u32 mode;
+        u32 uid;
+        u32 gid;
+        u64 size;
+        u64 atime_sec;
+        u64 atime_nsec;
+        u64 mtime_sec;
+        u64 mtime_nsec;
+};
+
 /* Structures for Protocol Operations */
 struct p9_tstatfs {
         u32 fid;
@@ -485,6 +586,18 @@ struct p9_rwrite {
         u32 count;
 };
 
+struct p9_treaddir {
+        u32 fid;
+        u64 offset;
+        u32 count;
+};
+
+struct p9_rreaddir {
+        u32 count;
+        u8 *data;
+};
+
+
 struct p9_tclunk {
         u32 fid;
 };
diff --git a/include/net/9p/client.h b/include/net/9p/client.h
index 7dd3ed85c782..d1aa2cfb30f0 100644
--- a/include/net/9p/client.h
+++ b/include/net/9p/client.h
@@ -195,6 +195,21 @@ struct p9_fid {
         struct list_head dlist; /* list of all fids attached to a dentry */
 };
 
+/**
+ * struct p9_dirent - directory entry structure
+ * @qid: The p9 server qid for this dirent
+ * @d_off: offset to the next dirent
+ * @d_type: type of file
+ * @d_name: file name
+ */
+
+struct p9_dirent {
+        struct p9_qid qid;
+        u64 d_off;
+        unsigned char d_type;
+        char d_name[256];
+};
+
 int p9_client_statfs(struct p9_fid *fid, struct p9_rstatfs *sb);
 int p9_client_rename(struct p9_fid *fid, struct p9_fid *newdirfid, char *name);
 int p9_client_version(struct p9_client *);
@@ -211,15 +226,31 @@ struct p9_fid *p9_client_walk(struct p9_fid *oldfid, int nwname, char **wnames,
 int p9_client_open(struct p9_fid *fid, int mode);
 int p9_client_fcreate(struct p9_fid *fid, char *name, u32 perm, int mode,
                                                         char *extension);
+int p9_client_link(struct p9_fid *fid, struct p9_fid *oldfid, char *newname);
+int p9_client_symlink(struct p9_fid *fid, char *name, char *symname, gid_t gid,
+                                                        struct p9_qid *qid);
+int p9_client_create_dotl(struct p9_fid *ofid, char *name, u32 flags, u32 mode,
+                gid_t gid, struct p9_qid *qid);
 int p9_client_clunk(struct p9_fid *fid);
 int p9_client_remove(struct p9_fid *fid);
 int p9_client_read(struct p9_fid *fid, char *data, char __user *udata,
                                                         u64 offset, u32 count);
 int p9_client_write(struct p9_fid *fid, char *data, const char __user *udata,
                                                         u64 offset, u32 count);
+int p9_client_readdir(struct p9_fid *fid, char *data, u32 count, u64 offset);
+int p9dirent_read(char *buf, int len, struct p9_dirent *dirent,
+                                                        int proto_version);
 struct p9_wstat *p9_client_stat(struct p9_fid *fid);
 int p9_client_wstat(struct p9_fid *fid, struct p9_wstat *wst);
+int p9_client_setattr(struct p9_fid *fid, struct p9_iattr_dotl *attr);
+
+struct p9_stat_dotl *p9_client_getattr_dotl(struct p9_fid *fid,
+                                                        u64 request_mask);
 
+int p9_client_mknod_dotl(struct p9_fid *oldfid, char *name, int mode,
+                        dev_t rdev, gid_t gid, struct p9_qid *);
+int p9_client_mkdir_dotl(struct p9_fid *fid, char *name, int mode,
+                                gid_t gid, struct p9_qid *);
 struct p9_req_t *p9_tag_lookup(struct p9_client *, u16);
 void p9_client_cb(struct p9_client *c, struct p9_req_t *req);
 
@@ -229,5 +260,7 @@ void p9stat_free(struct p9_wstat *);
 
 int p9_is_proto_dotu(struct p9_client *clnt);
 int p9_is_proto_dotl(struct p9_client *clnt);
+struct p9_fid *p9_client_xattrwalk(struct p9_fid *, const char *, u64 *);
+int p9_client_xattrcreate(struct p9_fid *, const char *, u64, int);
 
 #endif /* NET_9P_CLIENT_H */
diff --git a/net/9p/client.c b/net/9p/client.c
index 37c8da07a80b..dc6f2f26d023 100644
--- a/net/9p/client.c
+++ b/net/9p/client.c
@@ -460,7 +460,8 @@ static int p9_check_errors(struct p9_client *c, struct p9_req_t *req)
                         return err;
                 }
 
-                if (p9_is_proto_dotu(c))
+                if (p9_is_proto_dotu(c) ||
+                        p9_is_proto_dotl(c))
                         err = -ecode;
 
                 if (!err || !IS_ERR_VALUE(err))
@@ -1015,14 +1016,18 @@ int p9_client_open(struct p9_fid *fid, int mode)
         struct p9_qid qid;
         int iounit;
 
-        P9_DPRINTK(P9_DEBUG_9P, ">>> TOPEN fid %d mode %d\n", fid->fid, mode);
-        err = 0;
         clnt = fid->clnt;
+        P9_DPRINTK(P9_DEBUG_9P, ">>> %s fid %d mode %d\n",
+                p9_is_proto_dotl(clnt) ? "TLOPEN" : "TOPEN", fid->fid, mode);
+        err = 0;
 
         if (fid->mode != -1)
                 return -EINVAL;
 
-        req = p9_client_rpc(clnt, P9_TOPEN, "db", fid->fid, mode);
+        if (p9_is_proto_dotl(clnt))
+                req = p9_client_rpc(clnt, P9_TLOPEN, "dd", fid->fid, mode);
+        else
+                req = p9_client_rpc(clnt, P9_TOPEN, "db", fid->fid, mode);
         if (IS_ERR(req)) {
                 err = PTR_ERR(req);
                 goto error;
@@ -1034,10 +1039,9 @@ int p9_client_open(struct p9_fid *fid, int mode)
                 goto free_and_error;
         }
 
-        P9_DPRINTK(P9_DEBUG_9P, "<<< ROPEN qid %x.%llx.%x iounit %x\n",
-                                qid.type,
-                                (unsigned long long)qid.path,
-                                qid.version, iounit);
+        P9_DPRINTK(P9_DEBUG_9P, "<<< %s qid %x.%llx.%x iounit %x\n",
+                p9_is_proto_dotl(clnt) ? "RLOPEN" : "ROPEN",  qid.type,
+                (unsigned long long)qid.path, qid.version, iounit);
 
         fid->mode = mode;
         fid->iounit = iounit;
@@ -1049,6 +1053,50 @@ error:
 }
 EXPORT_SYMBOL(p9_client_open);
 
+int p9_client_create_dotl(struct p9_fid *ofid, char *name, u32 flags, u32 mode,
+                gid_t gid, struct p9_qid *qid)
+{
+        int err = 0;
+        struct p9_client *clnt;
+        struct p9_req_t *req;
+        int iounit;
+
+        P9_DPRINTK(P9_DEBUG_9P,
+                        ">>> TLCREATE fid %d name %s flags %d mode %d gid %d\n",
+                        ofid->fid, name, flags, mode, gid);
+        clnt = ofid->clnt;
+
+        if (ofid->mode != -1)
+                return -EINVAL;
+
+        req = p9_client_rpc(clnt, P9_TLCREATE, "dsddd", ofid->fid, name, flags,
+                        mode, gid);
+        if (IS_ERR(req)) {
+                err = PTR_ERR(req);
+                goto error;
+        }
+
+        err = p9pdu_readf(req->rc, clnt->proto_version, "Qd", qid, &iounit);
+        if (err) {
+                p9pdu_dump(1, req->rc);
+                goto free_and_error;
+        }
+
+        P9_DPRINTK(P9_DEBUG_9P, "<<< RLCREATE qid %x.%llx.%x iounit %x\n",
+                        qid->type,
+                        (unsigned long long)qid->path,
+                        qid->version, iounit);
+
+        ofid->mode = mode;
+        ofid->iounit = iounit;
+
+free_and_error:
+        p9_free_req(clnt, req);
+error:
+        return err;
+}
+EXPORT_SYMBOL(p9_client_create_dotl);
+
 int p9_client_fcreate(struct p9_fid *fid, char *name, u32 perm, int mode,
                      char *extension)
 {
@@ -1094,6 +1142,59 @@ error:
 }
 EXPORT_SYMBOL(p9_client_fcreate);
 
+int p9_client_symlink(struct p9_fid *dfid, char *name, char *symtgt, gid_t gid,
+                struct p9_qid *qid)
+{
+        int err = 0;
+        struct p9_client *clnt;
+        struct p9_req_t *req;
+
+        P9_DPRINTK(P9_DEBUG_9P, ">>> TSYMLINK dfid %d name %s  symtgt %s\n",
+                        dfid->fid, name, symtgt);
+        clnt = dfid->clnt;
+
+        req = p9_client_rpc(clnt, P9_TSYMLINK, "dssd", dfid->fid, name, symtgt,
+                        gid);
+        if (IS_ERR(req)) {
+                err = PTR_ERR(req);
+                goto error;
+        }
+
+        err = p9pdu_readf(req->rc, clnt->proto_version, "Q", qid);
+        if (err) {
+                p9pdu_dump(1, req->rc);
+                goto free_and_error;
+        }
+
+        P9_DPRINTK(P9_DEBUG_9P, "<<< RSYMLINK qid %x.%llx.%x\n",
+                        qid->type, (unsigned long long)qid->path, qid->version);
+
+free_and_error:
+        p9_free_req(clnt, req);
+error:
+        return err;
+}
+EXPORT_SYMBOL(p9_client_symlink);
+
+int p9_client_link(struct p9_fid *dfid, struct p9_fid *oldfid, char *newname)
+{
+        struct p9_client *clnt;
+        struct p9_req_t *req;
+
+        P9_DPRINTK(P9_DEBUG_9P, ">>> TLINK dfid %d oldfid %d newname %s\n",
+                        dfid->fid, oldfid->fid, newname);
+        clnt = dfid->clnt;
+        req = p9_client_rpc(clnt, P9_TLINK, "dds", dfid->fid, oldfid->fid,
+                        newname);
+        if (IS_ERR(req))
+                return PTR_ERR(req);
+
+        P9_DPRINTK(P9_DEBUG_9P, "<<< RLINK\n");
+        p9_free_req(clnt, req);
+        return 0;
+}
+EXPORT_SYMBOL(p9_client_link);
+
 int p9_client_clunk(struct p9_fid *fid)
 {
         int err;
@@ -1139,9 +1240,8 @@ int p9_client_remove(struct p9_fid *fid)
         P9_DPRINTK(P9_DEBUG_9P, "<<< RREMOVE fid %d\n", fid->fid);
 
         p9_free_req(clnt, req);
-        p9_fid_destroy(fid);
-
 error:
+        p9_fid_destroy(fid);
         return err;
 }
 EXPORT_SYMBOL(p9_client_remove);
@@ -1302,6 +1402,65 @@ error:
 }
 EXPORT_SYMBOL(p9_client_stat);
 
+struct p9_stat_dotl *p9_client_getattr_dotl(struct p9_fid *fid,
+                                                        u64 request_mask)
+{
+        int err;
+        struct p9_client *clnt;
+        struct p9_stat_dotl *ret = kmalloc(sizeof(struct p9_stat_dotl),
+                                                                GFP_KERNEL);
+        struct p9_req_t *req;
+
+        P9_DPRINTK(P9_DEBUG_9P, ">>> TGETATTR fid %d, request_mask %lld\n",
+                                                        fid->fid, request_mask);
+
+        if (!ret)
+                return ERR_PTR(-ENOMEM);
+
+        err = 0;
+        clnt = fid->clnt;
+
+        req = p9_client_rpc(clnt, P9_TGETATTR, "dq", fid->fid, request_mask);
+        if (IS_ERR(req)) {
+                err = PTR_ERR(req);
+                goto error;
+        }
+
+        err = p9pdu_readf(req->rc, clnt->proto_version, "A", ret);
+        if (err) {
+                p9pdu_dump(1, req->rc);
+                p9_free_req(clnt, req);
+                goto error;
+        }
+
+        P9_DPRINTK(P9_DEBUG_9P,
+                "<<< RGETATTR st_result_mask=%lld\n"
+                "<<< qid=%x.%llx.%x\n"
+                "<<< st_mode=%8.8x st_nlink=%llu\n"
+                "<<< st_uid=%d st_gid=%d\n"
+                "<<< st_rdev=%llx st_size=%llx st_blksize=%llu st_blocks=%llu\n"
+                "<<< st_atime_sec=%lld st_atime_nsec=%lld\n"
+                "<<< st_mtime_sec=%lld st_mtime_nsec=%lld\n"
+                "<<< st_ctime_sec=%lld st_ctime_nsec=%lld\n"
+                "<<< st_btime_sec=%lld st_btime_nsec=%lld\n"
+                "<<< st_gen=%lld st_data_version=%lld",
+                ret->st_result_mask, ret->qid.type, ret->qid.path,
+                ret->qid.version, ret->st_mode, ret->st_nlink, ret->st_uid,
+                ret->st_gid, ret->st_rdev, ret->st_size, ret->st_blksize,
+                ret->st_blocks, ret->st_atime_sec, ret->st_atime_nsec,
+                ret->st_mtime_sec, ret->st_mtime_nsec, ret->st_ctime_sec,
+                ret->st_ctime_nsec, ret->st_btime_sec, ret->st_btime_nsec,
+                ret->st_gen, ret->st_data_version);
+
+        p9_free_req(clnt, req);
+        return ret;
+
+error:
+        kfree(ret);
+        return ERR_PTR(err);
+}
+EXPORT_SYMBOL(p9_client_getattr_dotl);
+
 static int p9_client_statsize(struct p9_wstat *wst, int proto_version)
 {
         int ret;
@@ -1366,6 +1525,36 @@ error:
 }
 EXPORT_SYMBOL(p9_client_wstat);
 
+int p9_client_setattr(struct p9_fid *fid, struct p9_iattr_dotl *p9attr)
+{
+        int err;
+        struct p9_req_t *req;
+        struct p9_client *clnt;
+
+        err = 0;
+        clnt = fid->clnt;
+        P9_DPRINTK(P9_DEBUG_9P, ">>> TSETATTR fid %d\n", fid->fid);
+        P9_DPRINTK(P9_DEBUG_9P,
+                "    valid=%x mode=%x uid=%d gid=%d size=%lld\n"
+                "    atime_sec=%lld atime_nsec=%lld\n"
+                "    mtime_sec=%lld mtime_nsec=%lld\n",
+                p9attr->valid, p9attr->mode, p9attr->uid, p9attr->gid,
+                p9attr->size, p9attr->atime_sec, p9attr->atime_nsec,
+                p9attr->mtime_sec, p9attr->mtime_nsec);
+
+        req = p9_client_rpc(clnt, P9_TSETATTR, "dI", fid->fid, p9attr);
+
+        if (IS_ERR(req)) {
+                err = PTR_ERR(req);
+                goto error;
+        }
+        P9_DPRINTK(P9_DEBUG_9P, "<<< RSETATTR fid %d\n", fid->fid);
+        p9_free_req(clnt, req);
+error:
+        return err;
+}
+EXPORT_SYMBOL(p9_client_setattr);
+
 int p9_client_statfs(struct p9_fid *fid, struct p9_rstatfs *sb)
 {
         int err;
@@ -1432,3 +1621,187 @@ error:
 }
 EXPORT_SYMBOL(p9_client_rename);
 
+/*
+ * An xattrwalk without @attr_name gives the fid for the lisxattr namespace
+ */
+struct p9_fid *p9_client_xattrwalk(struct p9_fid *file_fid,
+                                const char *attr_name, u64 *attr_size)
+{
+        int err;
+        struct p9_req_t *req;
+        struct p9_client *clnt;
+        struct p9_fid *attr_fid;
+
+        err = 0;
+        clnt = file_fid->clnt;
+        attr_fid = p9_fid_create(clnt);
+        if (IS_ERR(attr_fid)) {
+                err = PTR_ERR(attr_fid);
+                attr_fid = NULL;
+                goto error;
+        }
+        P9_DPRINTK(P9_DEBUG_9P,
+                ">>> TXATTRWALK file_fid %d, attr_fid %d name %s\n",
+                file_fid->fid, attr_fid->fid, attr_name);
+
+        req = p9_client_rpc(clnt, P9_TXATTRWALK, "dds",
+                        file_fid->fid, attr_fid->fid, attr_name);
+        if (IS_ERR(req)) {
+                err = PTR_ERR(req);
+                goto error;
+        }
+        err = p9pdu_readf(req->rc, clnt->proto_version, "q", attr_size);
+        if (err) {
+                p9pdu_dump(1, req->rc);
+                p9_free_req(clnt, req);
+                goto clunk_fid;
+        }
+        p9_free_req(clnt, req);
+        P9_DPRINTK(P9_DEBUG_9P, "<<<  RXATTRWALK fid %d size %llu\n",
+                attr_fid->fid, *attr_size);
+        return attr_fid;
+clunk_fid:
+        p9_client_clunk(attr_fid);
+        attr_fid = NULL;
+error:
+        if (attr_fid && (attr_fid != file_fid))
+                p9_fid_destroy(attr_fid);
+
+        return ERR_PTR(err);
+}
+EXPORT_SYMBOL_GPL(p9_client_xattrwalk);
+
+int p9_client_xattrcreate(struct p9_fid *fid, const char *name,
+                        u64 attr_size, int flags)
+{
+        int err;
+        struct p9_req_t *req;
+        struct p9_client *clnt;
+
+        P9_DPRINTK(P9_DEBUG_9P,
+                ">>> TXATTRCREATE fid %d name  %s size %lld flag %d\n",
+                fid->fid, name, (long long)attr_size, flags);
+        err = 0;
+        clnt = fid->clnt;
+        req = p9_client_rpc(clnt, P9_TXATTRCREATE, "dsqd",
+                        fid->fid, name, attr_size, flags);
+        if (IS_ERR(req)) {
+                err = PTR_ERR(req);
+                goto error;
+        }
+        P9_DPRINTK(P9_DEBUG_9P, "<<< RXATTRCREATE fid %d\n", fid->fid);
+        p9_free_req(clnt, req);
+error:
+        return err;
+}
+EXPORT_SYMBOL_GPL(p9_client_xattrcreate);
+
+int p9_client_readdir(struct p9_fid *fid, char *data, u32 count, u64 offset)
+{
+        int err, rsize, total;
+        struct p9_client *clnt;
+        struct p9_req_t *req;
+        char *dataptr;
+
+        P9_DPRINTK(P9_DEBUG_9P, ">>> TREADDIR fid %d offset %llu count %d\n",
+                                fid->fid, (long long unsigned) offset, count);
+
+        err = 0;
+        clnt = fid->clnt;
+        total = 0;
+
+        rsize = fid->iounit;
+        if (!rsize || rsize > clnt->msize-P9_READDIRHDRSZ)
+                rsize = clnt->msize - P9_READDIRHDRSZ;
+
+        if (count < rsize)
+                rsize = count;
+
+        req = p9_client_rpc(clnt, P9_TREADDIR, "dqd", fid->fid, offset, rsize);
+        if (IS_ERR(req)) {
+                err = PTR_ERR(req);
+                goto error;
+        }
+
+        err = p9pdu_readf(req->rc, clnt->proto_version, "D", &count, &dataptr);
+        if (err) {
+                p9pdu_dump(1, req->rc);
+                goto free_and_error;
+        }
+
+        P9_DPRINTK(P9_DEBUG_9P, "<<< RREADDIR count %d\n", count);
+
+        if (data)
+                memmove(data, dataptr, count);
+
+        p9_free_req(clnt, req);
+        return count;
+
+free_and_error:
+        p9_free_req(clnt, req);
+error:
+        return err;
+}
+EXPORT_SYMBOL(p9_client_readdir);
+
+int p9_client_mknod_dotl(struct p9_fid *fid, char *name, int mode,
+                        dev_t rdev, gid_t gid, struct p9_qid *qid)
+{
+        int err;
+        struct p9_client *clnt;
+        struct p9_req_t *req;
+
+        err = 0;
+        clnt = fid->clnt;
+        P9_DPRINTK(P9_DEBUG_9P, ">>> TMKNOD fid %d name %s mode %d major %d "
+                "minor %d\n", fid->fid, name, mode, MAJOR(rdev), MINOR(rdev));
+        req = p9_client_rpc(clnt, P9_TMKNOD, "dsdddd", fid->fid, name, mode,
+                MAJOR(rdev), MINOR(rdev), gid);
+        if (IS_ERR(req))
+                return PTR_ERR(req);
+
+        err = p9pdu_readf(req->rc, clnt->proto_version, "Q", qid);
+        if (err) {
+                p9pdu_dump(1, req->rc);
+                goto error;
+        }
+        P9_DPRINTK(P9_DEBUG_9P, "<<< RMKNOD qid %x.%llx.%x\n", qid->type,
+                                (unsigned long long)qid->path, qid->version);
+
+error:
+        p9_free_req(clnt, req);
+        return err;
+
+}
+EXPORT_SYMBOL(p9_client_mknod_dotl);
+
+int p9_client_mkdir_dotl(struct p9_fid *fid, char *name, int mode,
+                                gid_t gid, struct p9_qid *qid)
+{
+        int err;
+        struct p9_client *clnt;
+        struct p9_req_t *req;
+
+        err = 0;
+        clnt = fid->clnt;
+        P9_DPRINTK(P9_DEBUG_9P, ">>> TMKDIR fid %d name %s mode %d gid %d\n",
+                 fid->fid, name, mode, gid);
+        req = p9_client_rpc(clnt, P9_TMKDIR, "dsdd", fid->fid, name, mode,
+                gid);
+        if (IS_ERR(req))
+                return PTR_ERR(req);
+
+        err = p9pdu_readf(req->rc, clnt->proto_version, "Q", qid);
+        if (err) {
+                p9pdu_dump(1, req->rc);
+                goto error;
+        }
+        P9_DPRINTK(P9_DEBUG_9P, "<<< RMKDIR qid %x.%llx.%x\n", qid->type,
+                                (unsigned long long)qid->path, qid->version);
+
+error:
+        p9_free_req(clnt, req);
+        return err;
+
+}
+EXPORT_SYMBOL(p9_client_mkdir_dotl);
diff --git a/net/9p/protocol.c b/net/9p/protocol.c
index 149f82160130..3acd3afb20c8 100644
--- a/net/9p/protocol.c
+++ b/net/9p/protocol.c
@@ -141,6 +141,7 @@ pdu_write_u(struct p9_fcall *pdu, const char __user *udata, size_t size)
         D - data blob (int32_t size followed by void *, results are not freed)
         T - array of strings (int16_t count, followed by strings)
         R - array of qids (int16_t count, followed by qids)
+        A - stat for 9p2000.L (p9_stat_dotl)
         ? - if optional = 1, continue parsing
 */
 
@@ -340,6 +341,33 @@ p9pdu_vreadf(struct p9_fcall *pdu, int proto_version, const char *fmt,
                                 }
                         }
                         break;
+                case 'A': {
+                                struct p9_stat_dotl *stbuf =
+                                    va_arg(ap, struct p9_stat_dotl *);
+
+                                memset(stbuf, 0, sizeof(struct p9_stat_dotl));
+                                errcode =
+                                    p9pdu_readf(pdu, proto_version,
+                                        "qQdddqqqqqqqqqqqqqqq",
+                                        &stbuf->st_result_mask,
+                                        &stbuf->qid,
+                                        &stbuf->st_mode,
+                                        &stbuf->st_uid, &stbuf->st_gid,
+                                        &stbuf->st_nlink,
+                                        &stbuf->st_rdev, &stbuf->st_size,
+                                        &stbuf->st_blksize, &stbuf->st_blocks,
+                                        &stbuf->st_atime_sec,
+                                        &stbuf->st_atime_nsec,
+                                        &stbuf->st_mtime_sec,
+                                        &stbuf->st_mtime_nsec,
+                                        &stbuf->st_ctime_sec,
+                                        &stbuf->st_ctime_nsec,
+                                        &stbuf->st_btime_sec,
+                                        &stbuf->st_btime_nsec,
+                                        &stbuf->st_gen,
+                                        &stbuf->st_data_version);
+                        }
+                        break;
                 case '?':
                         if ((proto_version != p9_proto_2000u) &&
                                 (proto_version != p9_proto_2000L))
@@ -488,6 +516,23 @@ p9pdu_vwritef(struct p9_fcall *pdu, int proto_version, const char *fmt,
                                 }
                         }
                         break;
+                case 'I':{
+                                struct p9_iattr_dotl *p9attr = va_arg(ap,
+                                                        struct p9_iattr_dotl *);
+
+                                errcode = p9pdu_writef(pdu, proto_version,
+                                                        "ddddqqqqq",
+                                                        p9attr->valid,
+                                                        p9attr->mode,
+                                                        p9attr->uid,
+                                                        p9attr->gid,
+                                                        p9attr->size,
+                                                        p9attr->atime_sec,
+                                                        p9attr->atime_nsec,
+                                                        p9attr->mtime_sec,
+                                                        p9attr->mtime_nsec);
+                        }
+                        break;
                 case '?':
                         if ((proto_version != p9_proto_2000u) &&
                                 (proto_version != p9_proto_2000L))
@@ -580,3 +625,30 @@ void p9pdu_reset(struct p9_fcall *pdu)
         pdu->offset = 0;
         pdu->size = 0;
 }
+
+int p9dirent_read(char *buf, int len, struct p9_dirent *dirent,
+                                                int proto_version)
+{
+        struct p9_fcall fake_pdu;
+        int ret;
+        char *nameptr;
+
+        fake_pdu.size = len;
+        fake_pdu.capacity = len;
+        fake_pdu.sdata = buf;
+        fake_pdu.offset = 0;
+
+        ret = p9pdu_readf(&fake_pdu, proto_version, "Qqbs", &dirent->qid,
+                        &dirent->d_off, &dirent->d_type, &nameptr);
+        if (ret) {
+                P9_DPRINTK(P9_DEBUG_9P, "<<< p9dirent_read failed: %d\n", ret);
+                p9pdu_dump(1, &fake_pdu);
+                goto out;
+        }
+
+        strcpy(dirent->d_name, nameptr);
+
+out:
+        return fake_pdu.offset;
+}
+EXPORT_SYMBOL(p9dirent_read);
diff --git a/net/9p/trans_fd.c b/net/9p/trans_fd.c
index 98ce9bcb0e15..c85109d809ca 100644
--- a/net/9p/trans_fd.c
+++ b/net/9p/trans_fd.c
@@ -948,7 +948,7 @@ p9_fd_create_unix(struct p9_client *client, const char *addr, char *args)
 
         csocket = NULL;
 
-        if (strlen(addr) > UNIX_PATH_MAX) {
+        if (strlen(addr) >= UNIX_PATH_MAX) {
                 P9_EPRINTK(KERN_ERR, "p9_trans_unix: address too long: %s\n",
                         addr);
                 return -ENAMETOOLONG;