[CIFS] Fix double list addition in cifs posix open code

Remove adding open file entry twice to lists in the file
Do not fill file info twice in case of posix opens and creates

Signed-off-by: Shirish Pargaonkar <[e-mail]>
Signed-off-by: Steve French <[e-mail]>

fs/cifs/dir.c

···
 	int create_options = CREATE_NOT_DIR;
 	int oplock = 0;
 	int oflags;
+	bool posix_create = false;
 	/*
 	 * BB below access is probably too much for mknod to request
 	 *    but we have to do query and setpathinfo so requesting
···
 		   negotation.  EREMOTE indicates DFS junction, which is not
 		   handled in posix open */
 
-		if ((rc == 0) && (newinode == NULL))
-			goto cifs_create_get_file_info; /* query inode info */
-		else if (rc == 0) /* success, no need to query */
-			goto cifs_create_set_dentry;
-		else if ((rc != -EIO) && (rc != -EREMOTE) &&
+		if (rc == 0) {
+			posix_create = true;
+			if (newinode == NULL) /* query inode info */
+				goto cifs_create_get_file_info;
+			else /* success, no need to query */
+				goto cifs_create_set_dentry;
+		} else if ((rc != -EIO) && (rc != -EREMOTE) &&
 			 (rc != -EOPNOTSUPP)) /* path not found or net err */
 			goto cifs_create_out;
 		/* else fallthrough to retry, using older open call, this is
···
 	if ((nd == NULL) || (!(nd->flags & LOOKUP_OPEN))) {
 		/* mknod case - do not leave file open */
 		CIFSSMBClose(xid, tcon, fileHandle);
-	} else if (newinode) {
+	} else if (!(posix_create) && (newinode)) {
 			cifs_fill_fileinfo(newinode, fileHandle,
 					cifs_sb->tcon, write_only);
 	}

fs/cifs/file.c

···
 			struct file *file, struct cifsInodeInfo *pCifsInode,
 			struct cifsFileInfo *pCifsFile, int oplock, u16 netfid)
 {
-	struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
-/*	struct timespec temp; */   /* BB REMOVEME BB */
 
 	file->private_data = kmalloc(sizeof(struct cifsFileInfo), GFP_KERNEL);
 	if (file->private_data == NULL)
 		return -ENOMEM;
 	pCifsFile = cifs_init_private(file->private_data, inode, file, netfid);
 	write_lock(&GlobalSMBSeslock);
-	list_add(&pCifsFile->tlist, &cifs_sb->tcon->openFileList);
 
 	pCifsInode = CIFS_I(file->f_path.dentry->d_inode);
 	if (pCifsInode == NULL) {
 		write_unlock(&GlobalSMBSeslock);
 		return -EINVAL;
-	}
-
-	/* want handles we can use to read with first
-	   in the list so we do not have to walk the
-	   list to search for one in write_begin */
-	if ((file->f_flags & O_ACCMODE) == O_WRONLY) {
-		list_add_tail(&pCifsFile->flist,
-			      &pCifsInode->openFileList);
-	} else {
-		list_add(&pCifsFile->flist,
-			 &pCifsInode->openFileList);
 	}
 
 	if (pCifsInode->clientCanCacheRead) {