fs/9p: Add inode hashing

We didn't add the inode to inode hash in 9p. We need to do that
to get sync to work, otherwise __mark_inode_dirty will not
add the inode to super block's dirty list.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>

1 files changed, 46 insertions, 23 deletions

diff --git a/fs/9p/vfs_inode_dotl.c b/fs/9p/vfs_inode_dotl.c
index 1327464bb2bb..6f62320eda89 100644
--- a/fs/9p/vfs_inode_dotl.c
+++ b/fs/9p/vfs_inode_dotl.c
@@ -86,40 +86,63 @@ static struct dentry *v9fs_dentry_from_dir_inode(struct inode *inode)
         return dentry;
 }
 
+static struct inode *v9fs_qid_iget_dotl(struct super_block *sb,
+                                        struct p9_qid *qid,
+                                        struct p9_fid *fid,
+                                        struct p9_stat_dotl *st)
+{
+        int retval;
+        unsigned long i_ino;
+        struct inode *inode;
+        struct v9fs_session_info *v9ses = sb->s_fs_info;
+
+        i_ino = v9fs_qid2ino(qid);
+        inode = iget_locked(sb, i_ino);
+        if (!inode)
+                return ERR_PTR(-ENOMEM);
+        if (!(inode->i_state & I_NEW))
+                return inode;
+        /*
+         * initialize the inode with the stat info
+         * FIXME!! we may need support for stale inodes
+         * later.
+         */
+        retval = v9fs_init_inode(v9ses, inode, st->st_mode);
+        if (retval)
+                goto error;
+
+        v9fs_stat2inode_dotl(st, inode);
+#ifdef CONFIG_9P_FSCACHE
+        v9fs_vcookie_set_qid(inode, &st->qid);
+        v9fs_cache_inode_get_cookie(inode);
+#endif
+        retval = v9fs_get_acl(inode, fid);
+        if (retval)
+                goto error;
+
+        unlock_new_inode(inode);
+        return inode;
+error:
+        unlock_new_inode(inode);
+        iput(inode);
+        return ERR_PTR(retval);
+
+}
+
 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;
+        struct inode *inode = NULL;
 
         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
-        err = v9fs_get_acl(ret, fid);
-        if (err) {
-                iput(ret);
-                goto error;
-        }
-        kfree(st);
-        return ret;
-error:
+        inode = v9fs_qid_iget_dotl(sb, &st->qid, fid, st);
         kfree(st);
-        return ERR_PTR(err);
+        return inode;
 }
 
 /**