Thank you for the answering. In ext2, it seems to me that inode's i_size field can be accessed without holding i_mutex nor thorugh i_size_read function. For example, in ext2_update_inode() can be invoked without holding i_mutex. However, it freely access i_size field. Are these accesses can race with each others? Sincerely Shin Hong -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html