9p: add 9P2000.L rename operation

[pandora-kernel.git] / fs / 9p / vfs_inode.c

diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index f2434fc..de9a395 100644 (file)
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -44,9 +44,12 @@
 #include "cache.h"
 
 static const struct inode_operations v9fs_dir_inode_operations;
-static const struct inode_operations v9fs_dir_inode_operations_ext;
+static const struct inode_operations v9fs_dir_inode_operations_dotu;
+static const struct inode_operations v9fs_dir_inode_operations_dotl;
 static const struct inode_operations v9fs_file_inode_operations;
+static const struct inode_operations v9fs_file_inode_operations_dotl;
 static const struct inode_operations v9fs_symlink_inode_operations;
+static const struct inode_operations v9fs_symlink_inode_operations_dotl;
 
 /**
  * unixmode2p9mode - convert unix mode bits to plan 9
@@ -275,25 +278,44 @@ struct inode *v9fs_get_inode(struct super_block *sb, int mode)
                init_special_inode(inode, inode->i_mode, inode->i_rdev);
                break;
        case S_IFREG:
-               inode->i_op = &v9fs_file_inode_operations;
-               inode->i_fop = &v9fs_file_operations;
+               if (v9fs_proto_dotl(v9ses)) {
+                       inode->i_op = &v9fs_file_inode_operations_dotl;
+                       inode->i_fop = &v9fs_file_operations_dotl;
+               } else {
+                       inode->i_op = &v9fs_file_inode_operations;
+                       inode->i_fop = &v9fs_file_operations;
+               }
+
                break;
+
        case S_IFLNK:
-               if (!v9fs_proto_dotu(v9ses)) {
-                       P9_DPRINTK(P9_DEBUG_ERROR,
-                                  "extended modes used w/o 9P2000.u\n");
+               if (!v9fs_proto_dotu(v9ses) && !v9fs_proto_dotl(v9ses)) {
+                       P9_DPRINTK(P9_DEBUG_ERROR, "extended modes used with "
+                                               "legacy protocol.\n");
                        err = -EINVAL;
                        goto error;
                }
-               inode->i_op = &v9fs_symlink_inode_operations;
+
+               if (v9fs_proto_dotl(v9ses))
+                       inode->i_op = &v9fs_symlink_inode_operations_dotl;
+               else
+                       inode->i_op = &v9fs_symlink_inode_operations;
+
                break;
        case S_IFDIR:
                inc_nlink(inode);
-               if (v9fs_proto_dotu(v9ses))
-                       inode->i_op = &v9fs_dir_inode_operations_ext;
+               if (v9fs_proto_dotl(v9ses))
+                       inode->i_op = &v9fs_dir_inode_operations_dotl;
+               else if (v9fs_proto_dotu(v9ses))
+                       inode->i_op = &v9fs_dir_inode_operations_dotu;
                else
                        inode->i_op = &v9fs_dir_inode_operations;
-               inode->i_fop = &v9fs_dir_operations;
+
+               if (v9fs_proto_dotl(v9ses))
+                       inode->i_fop = &v9fs_dir_operations_dotl;
+               else
+                       inode->i_fop = &v9fs_dir_operations;
+
                break;
        default:
                P9_DPRINTK(P9_DEBUG_ERROR, "BAD mode 0x%x S_IFMT 0x%x\n",
@@ -772,6 +794,13 @@ v9fs_vfs_rename(struct inode *old_dir, struct dentry *old_dentry,
                goto clunk_olddir;
        }
 
+       if (v9fs_proto_dotl(v9ses)) {
+               retval = p9_client_rename(oldfid, newdirfid,
+                                       (char *) new_dentry->d_name.name);
+               if (retval != -ENOSYS)
+                       goto clunk_newdir;
+       }
+
        /* 9P can only handle file rename in the same directory */
        if (memcmp(&olddirfid->qid, &newdirfid->qid, sizeof(newdirfid->qid))) {
                P9_DPRINTK(P9_DEBUG_ERROR,
@@ -1208,7 +1237,21 @@ v9fs_vfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t rdev)
        return retval;
 }
 
-static const struct inode_operations v9fs_dir_inode_operations_ext = {
+static const struct inode_operations v9fs_dir_inode_operations_dotu = {
+       .create = v9fs_vfs_create,
+       .lookup = v9fs_vfs_lookup,
+       .symlink = v9fs_vfs_symlink,
+       .link = v9fs_vfs_link,
+       .unlink = v9fs_vfs_unlink,
+       .mkdir = v9fs_vfs_mkdir,
+       .rmdir = v9fs_vfs_rmdir,
+       .mknod = v9fs_vfs_mknod,
+       .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,
        .lookup = v9fs_vfs_lookup,
        .symlink = v9fs_vfs_symlink,
@@ -1239,6 +1282,11 @@ static const struct inode_operations v9fs_file_inode_operations = {
        .setattr = v9fs_vfs_setattr,
 };
 
+static const struct inode_operations v9fs_file_inode_operations_dotl = {
+       .getattr = v9fs_vfs_getattr,
+       .setattr = v9fs_vfs_setattr,
+};
+
 static const struct inode_operations v9fs_symlink_inode_operations = {
        .readlink = generic_readlink,
        .follow_link = v9fs_vfs_follow_link,
@@ -1246,3 +1294,11 @@ static const struct inode_operations v9fs_symlink_inode_operations = {
        .getattr = v9fs_vfs_getattr,
        .setattr = v9fs_vfs_setattr,
 };
+
+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,
+};